The way to prevent excessive exercise is simple, that is, pay attention to the amount of exercise. Generally, the duration of all sports should not exceed 1 hour. Friends who exercise in the gym can control their own exercise through the heart rate meter; If a friend who exercises himself feels short of breath, sweaty and dizzy, it means that he is about to reach the maximum exercise intensity. At this time, he should slow down or have a little rest. In addition, it is enough to exercise 3~4 times a week.
In addition, some small measures can also help you prevent excessive exercise.
1. Wear proper shoes.
Some old people like to wear cloth shoes with thin soles when exercising. Cloth shoes have no shock absorption effect, and can't effectively buffer excessive movements when exercising too hard, which is easy to damage the spine and brain. It is best to change shoes and choose a pair of sports shoes with good shock absorption effect. In addition, even the best sports shoes should be replaced regularly, and the ideal time is to change a pair of shoes every six to twelve months.
2. Avoid rapidly increasing the number and time of exercise.
In the process of exercise, pay attention to slowly increase the exercise time to make the muscles supporting the knees stronger. At the same time, the types of sports should also change. Try different forms of aerobic classes, using rowing machines, riding bicycles, lifting weights and skipping rope, as long as you don't do the same exercise every day.
3. Be good at sports
Be careful when doing repetitive strenuous exercise, such as stabbing and kicking, squatting, etc. You must keep the right posture. When exercising, it's best to ask the teacher or coach for advice and let them tell you how to adjust your movements. If you are used to doing squats, do not exercise more than 5 groups at a time, and each group should not exceed 12 times. When squatting and getting up, you should slow down, not too fast or too hard, otherwise your blood sugar will drop rapidly in an instant, which will easily lead to blackness and dizziness.
How to protect yourself in sports? Do more warm-up exercises and do what you can. Don't do anything dangerous.
How to protect yourself in the tsunami? I found several articles.
The miracle of survival in the tsunami: the will to survive repels death (Figure). There are some words in this article:
Casare, a 65-year-old village head, said that their ancestors left them an old saying: "If the sea recedes quickly, when it reappears, its speed and flow will be exactly the same."
Experts believe that the rapid retreat of a large amount of seawater is indeed a sign that a tsunami is about to happen.
She said that she saw many bubbles on the beach, and then the waves suddenly came. This is exactly what the geography teacher once described as the initial situation of the tsunami caused by the earthquake. The teacher also said that it took about 10 minutes from the gradual rise of sea water to the tsunami.
There is also a video about self-help: the reporter actually filmed the whole process of surviving in the tsunami.
Search it yourself.
How to protect joints during exercise, wear protective gear, and be sure to warm up and sweat slightly before exercise.
How to protect yourself from injury during exercise? Warm up before exercise
How to protect yourself in an attack 1 The following places are airports, docks and other places with high frequency of terrorist incidents (including robbery). In addition to these places themselves, terrorist incidents often occur in places closely related to these places, such as civil aviation planes, subways, ferries and so on. The nature of events in these places also has certain rules. For example, explosions usually occur in densely populated places, such as stations, shopping malls, airports and so on. Hijacking incidents generally occur in vehicles, and business clubs are also places where hijacking incidents occur frequently. Moreover, in the event of hijacking in some business clubs with the nature of * * *, most of them are political and have great influence; Banks are the most frequently robbed places.
The explosion is difficult to prevent, and once it happens, it will spread widely, so as long as you are on the scene, you will inevitably get hurt. Therefore, the only way to prevent explosion is to be vigilant (of course, you don't have to be nervous all day, most countries and regions are still safe). However, when there are unstable factors in your area, you should reduce the places where people gather. If you find long-term abandoned luggage and parcels in these places, you should call the police, if necessary, and never move or even try to open these things. If you travel in some unstable areas such as the Middle East, there is also the threat of suicide bombs! Pay attention to people wearing fat clothes (especially thin people wearing fat clothes), their eyes are dull and their movements are sneaky! Garbage bins are a good place to hide bombs, so remind everyone that it is best to stay away from garbage bins in public places!
If there is an explosion unfortunately, as long as you are awake, the first thing to do is to leave the scene quickly! Because you can't confirm whether there is a second explosion! But if you hear gunshots or someone threatens to shout at this time, you should stop immediately, lie down on the spot or find a shelter nearby! Because there must be terrorists fighting with the police or shooting people who try to resist at this time. At this time, if you run around, you may become the target of terrorists!
Special reminder: it is foolish to blindly look for survivors to save people under the uncertain situation! When a terrorist attack suddenly happens, protecting yourself is the first priority!
3. How to protect yourself in a gunfight
If there is a gun battle, don't run around in panic, but lie down on the spot! Lie down quickly on the spot, regardless of whether the site is clean, whether there is water and dirt. Because the flying speed of bullets and the shooting speed of automatic weapons are very fast! Like the AK-47 automatic rifle commonly used by terrorists, it can smash you into a sieve in a few seconds! After lying down, you can observe the terrain properly and move quickly behind the bunker if possible. But these bunkers should be able to effectively stop bullets. Don't believe some scenes in police films. The bullet flying at high speed determines its amazing penetration!
If there is a Grenade flying to your side in the gun battle, the situation is more complicated! This can be divided into two situations: if the Grenade falls outside the range of 1.5 meters from you, then you should immediately throw yourself away from the Grenade and lie down. It would be better if you could hide behind something. Because there is a dead angle (about 30 degrees from the ground) in the killing range when the Grenade explodes, it is safer for you to hide at this angle; But if the Grenade falls under your feet (1 meter), you should kick it out with your feet at once anyway, and then lie down in the opposite direction! You can't pick it up and throw it with your hands, because the explosion delay of most grenades is only 3 seconds. At such a close distance, even if you lie down, grenades can still blow you to pieces!
Please don't trust the police too much! In gun battles, the police sometimes shoot like bandits! Moreover, if you happen to be caught in the battlefield between the police and robbers, you can only be the target of both sides. So the best way is to lie still until the gunfight is over.
The following are some relatively safe and unsafe shelters:
Shrub from: anyone who wants to hide behind the bushes to avoid bullets is crazy! The ability of bushes to stop bullets is as fragile as paper. Any bullet can hang you behind the bush. But bushes can effectively interfere with the shooter's sight, especially at night, and are a good barrier to escape.
Trash cans, wooden cases, oil drums: bullets that really hit these things will never fly like sparks in movies, but go through them, so it is meaningless to hide behind these things. After the bullet passes through these things, its lethality will not be weakened at all. Moreover, the bullet may also cause the oil in the oil drum to burn or explode.
Cars: Cars seem to be a good shelter. Actually, it is not! The 2 mm thick skin of a car is actually as fragile as a trash can! Within a distance of 50 meters, any bullet over 6 mm can shoot through the car! There are only two parts of this car that bullets can't penetrate. One place is the engine, and the other is the tire. The intricate mechanical parts and heavy casing in the engine can effectively stop bullets. The rubber on the tire provides you with the greatest possible protection by virtue of its excellent elastic efficiency. But once the car's fuel tank is hit, it means you are in big trouble.
Doors and furniture: No ordinary door panel in the world is bulletproof! Similarly, so is furniture. However, furniture and doors can help you avoid grenades and bombs. Because the killing effect of grenades and bombs mainly depends on air churning and shrapnel, if it is not a close-range explosion, you may get some damage behind the furniture, but generally it will not be fatal immediately.
Near glass doors and windows: The lethality of broken glass far exceeds your expectation, especially under the action of explosive force, its power is no less than that of ordinary bullets. In the missile attack on cities during the Iran-Iraq war, the shock wave generated by high explosive can even drive glass into reinforced concrete. Because glass is brittle, but its hardness is very high, which is ten times that of steel. In high-speed movement, it can cut iron like mud. Therefore, it would be a shame if you were found covered with broken glass after the gun battle.
Mound: Mound is a good shelter, which can effectively prevent bullets and explosions. During the War of Resistance against Japanese Aggression period, the Eighth Route Army used to take low-grade machine gun bullets under a table piled with loess, which shows that the mound has an extraordinary ability to stop bullets.
Cement brick wall: reinforced concrete cement wall and ordinary brick wall can stop bullets quite well. But this does not include the lightweight hollow materials in high-rise buildings, which are easily penetrated by automatic rifle bullets. But anyway, the wall is a good shelter. Because even if you can't effectively protect yourself from bullets, at least you can be invisible to the shooter.
4. What should I do if I am held hostage?
Once you are unfortunately held hostage, first of all, don't panic, especially MM, don't yell hysterically and jump around. Otherwise, once terrorists think that you may cause him trouble, they will probably use a peanut to shut you up. Try to show obedience to the hijackers, don't shout, don't fight, and especially don't actively try to have physical contact with the hijackers! If you want to do something, you must first get the consent of the hijacker and let him know that such a move will not cause him any harm. In short, you must find ways to stabilize the mood of the hijackers, especially those who have explosives on them. If the hijacker is in a stable mood, then you can try to talk to him. If your conversation skills are high enough, don't rule out the possibility of letting him lay down his weapon. However, this attempt is dangerous, especially for terrorists with political purposes. If the hijacker's mood is relatively stable, you can carefully try to make the hijacker turn his back to the window and door, which will make the hijacker unresponsive when the police break through the window. If the hijacker is holding you and he doesn't have an explosive device. Then you should carefully observe whether there are tall buildings, hillsides, vehicles, trees and so on. Outside the window. If there is, then you should try to reduce the shaking of your body and, if possible, keep the hijacker close to the window. The purpose of this is to provide a good shooting opportunity for possible police snipers outside. If police snipers start to kill the hijackers, when you feel that the hijackers have been shot, you should get out of touch with them as soon as possible, and quickly find a place to hide or rush out of the room.
If you are taken hostage by armed groups in turbulent countries and regions, you must first declare your nationality and occupation, and don't make any futile efforts. I believe that your country and * * * will make diplomatic efforts to rescue you as soon as possible.
In short, once you become a hostage, you should first keep calm, don't provoke the hijackers, and look for opportunities to escape or create good rescue opportunities for the police.
5. Become a hero against terrorism
If there is no chance to escape in a terrorist incident, the ultimate goal of terrorists is to kill all hostages. Then instead of waiting for death, it is better to face the gangsters bravely and fight bravely!
To subdue terrorists, we must have enough courage and experience in fighting and using equipment. The following old fox will introduce these problems.
Please stop reading this post because the following contents may lead to harmful behaviors of people with mental disorders and bad intentions. )
Question 1: How to quickly incapacitate a person?
The human body has several fragile parts. Once these parts are attacked, the human body will soon lose some of its abilities and even die. So if you want to defeat the enemy, you must know these parts. Next I will introduce some important parts of the human body.
These parts are:
1, brain: The brain is the command of human actions, and brain injury will directly lead to loss of consciousness or death. Therefore, attacking a person's head can kill him. But the brain is protected by a solid skull, which can resist certain forces. Unless you have enough strength and hard weight, it is recommended that you don't attack people's heads easily. However, the back of the head is weak, so it is best to attack the head by sneak attack, commonly known as "beating the sap."
2, eyes: eyes are fragile and vulnerable. After being injured, you will not only lose your vision, but also cause severe pain, leading to coma. Moreover, the eyes can go straight back to the brain, and too deep injury will directly damage the brain. If you hand-to-hand combat with a terrorist, you can attack his eyes. I think it's more appropriate to poke with your fingers than to punch with your fists.
3. Heart: Once the heart is injured, it will lead to immediate death. But the heart is protected by ribs and sternum, so it is difficult for ordinary people to find the exact location of the heart. It is no exaggeration to say that even a professional soldier, if he doesn't have enough combat experience, will probably not stab someone in the right place or rib with a knife. So it is almost impossible to hurt your opponent's heart directly.
4. Testis (male): The male testicle seems to be a weak and windless organ. A slight blow will cause severe pain. So you can kick your opponent's crotch hard and even grab it with your hands in a fight! Please don't think this is a dirty trick. You are fighting the terrorists to the death, not playing cowboys in Hollywood.
5. Carotid artery: Carotid artery is located on the shoulder side of human neck, and you will feel obvious beating when you press it with your hand. It supplies blood directly to the brain. If you press this artery with your finger for a few seconds, you will feel dizzy. Therefore, an experienced boxer can temporarily paralyze his opponent by crushing this part hard. But as an ordinary person, it is difficult to find the carotid artery accurately. However, if you have enough courage (being able to spray blood at a distance of 1 m without being soft) and strength, and make a deep cut on this part of your opponent with a sharp knife, there is a considerable possibility that your opponent will die immediately without making a sound.
6. Cervical vertebra: Cervical vertebra is the only way for human motor nerve center. Once damaged, people will immediately lose the ability to move, and may suppress the respiratory center, leading to suffocation and death. Although movies often see spies breaking people's cervical vertebrae, I don't think ordinary people can do it. Here, I can tell you about a fracture in the American army, which can break a person's cervical vertebra immediately. The method is: pull the enemy's hair from behind with one hand, cover his mouth with the other hand and push back. When the enemy leans back, put his head under his arm and the attacker lies forward. This can immediately break the enemy's cervical vertebrae and fold the trachea without making any noise.
7. kidney; Except for the special forces, including the army, few people know that the kidney is a deadly organ. Kidney damage can cause severe pain, which can make people immediately go into shock without making a sound. Moreover, the kidney is located in the lower back of a person, without the protection of bones, and it is easy to be stabbed by sharp objects. Therefore, touching the sentry in Scout is not like being stabbed in the chest in the movie, but the dagger stabbed the kidney in the lower back.
8. Throat: The throat is in the middle of the neck, where the collarbone meets. Chinese medicine calls it the "Tiantu" point. This is the position of the trachea. Pressing hard can be suffocating. But suffocation is a process, and people with strong physique can endure suffocation for a long time. So, killing people is very difficult. Using a dagger to open the trachea can cause the other person's open pneumothorax and make no sound. But this is not as fast as cutting the opponent's carotid artery directly. If you happen to crush your opponent in a fight, it is a good way to bite his trachea with your teeth-the bite is strong enough to bite a person's trachea. There are many things you may not accept in this anti-terrorism post, but please remember that everything said here is to teach you how to win in the desperate struggle against terrorists, not to show you in the studio.
The above parts are fatal parts of the human body. Knowing these parts, you may be able to defeat the enemy with one move in the fight against terrorism.
Question 2: If I seize a terrorist's weapon, how should I use it?
This is a big problem. I believe that most of the civilians present (except those who have been soldiers) can't use all kinds of guns. We take the domestic 54 pistol and the famous terrorist "standard gun" AK-47 as examples to illustrate the use of pistols and automatic rifles. Although different countries in the world use different weapons, the principles and methods used are similar.
There are two famous automatic rifles to pay special attention to: the bolt of the American M 16 assault rifle is on the butt, so don't lose it. (M4A 1 in CS, there is no such weapon in reality) Israel's Jane Pride submachine gun has a lock on the handle. If you don't hold the handle tightly, the trigger can't be pulled.
You'd better unload the magazine before using the weapon and see if there are any bullets in it. Try not to continuous shooting, but continuous shooting or continuous shooting, which is almost three continuous shooting. The rate of head shots is high! It's best to count bullets, not like in the movies. In that case, you will run out of bullets in a few seconds! The rifle is out of bullets. If you can change the short gun, change it. If you don't have a short gun, throw a Grenade. When it is safe, change the magazine. A: Oh, my God! What am I doing? It is teaching you how to fight! )
By the way, here is a mythical weapon-sniper rifle. Real sniper rifles are not like those in games or movies. There is a cross star in the sight. But there are two rulers. One side is the ranging scale, and the middle is the aiming scale. This thing is too professional. I can't find a picture at the moment, so I can only talk about it. The ranging scale measures the distance of the target with a height of1.70m.. 1.70 meters is generally the height of normal men, so it is more accurate to use this distance. For example, if there is a terrorist in the distance, measure it with a distance measuring ruler to see how many squares he occupies on the ruler, and you will know how far he is from you. For example, if he has four and a half squares on the scale, then he is about 450 meters away from you. All you have to do is aim the square corresponding to 4 on the aiming scale at his meridian, and you can hit it with one shot without external interference. Of course, there are many factors to consider, such as wind direction, wind speed, relative height of the target, moving speed and so on. , will affect your shooting accuracy. These are all impossible in three years. So, even if you find this thing, although it is valuable, you'd better throw it away. However, it is a good choice to use this thing with armor-piercing bullets to hit helicopters. But ordinary terrorists won't buy such expensive guns, so you can't expect to find them.
The use of grenades is relatively simple. I think everyone has seen how to use a long wooden handle Grenade in the movie. Like the one in the picture, it is also very simple: take the long iron piece on the side, pull out the ring on the side and throw it out. The spring piece on the side will automatically pop up and ignite the fuse inside. One of the biggest advantages of this kind of Grenade is that it won't explode unless it is thrown out.
Note: the delay of long-handled grenades is generally 3 seconds. It is best to throw the pull ring on the little finger! Otherwise, it won't be fun to ring in your hand ~
Question 3: I found a bomb. How to solve it?
This problem is quite tricky. The first thing you should consider is how to leave this place, not demolish it. Unless you can't leave for a while, then you should consider whether you can throw it away. (e.g. thrown from the window of a tall building). Finally, if there is really no way (for example, the fuse of the bomb is about to burn out, the countdown is about to end, or you are on a plane or a ship), you may play the role of a bomb disposal team. First, you have to find out how the bomb was detonated. If there is only one fuse on it and there is no wire, it will be all right to break the fuse. Peeing is a good choice, but I guess most people will be too nervous to pee. Of course, it is quite great in this case, because they are afraid of wetting their pants! If there are wires on the bomb, it will be a little troublesome. Because this bomb may be timed or remotely controlled, it is detonated in different ways. It may be powered on, powered off, or even inductive (it explodes when approaching). But you have to gamble anyway. Now look at the detonator. If it is electrified, there is usually only one wire connected to the battery above the detonator, and the timing device should be electronic (I'm afraid the wind-up detonator is extinct now). If you look closely, you will find that there is only one cycle. If it is such a device, it may be electrified and detonated. All you have to do is cut the circuit or take out the battery. If the initiating device has more than two circuits, it may be initiated by power failure (one of which is the initiating circuit and the other is the control initiating circuit). When the initiating circuit is powered off, controlling the initiating circuit to take over the initiating circuit is equivalent to energizing the initiating circuit and detonating the bomb. Of course, there are more complex double-loop series-parallel control circuits. The annoying thing about this control method is that you don't know which circuit is the initiation circuit and which is the control circuit. If you accidentally connect the wrong wire, the bomb will explode immediately. There is another kind of circuit that you can't remove at all. No matter which wire you cut, it will detonate unless you take out the battery. However, the batteries of explosive devices are generally sealed inside and generally cannot be taken off. In this case, you must try to remove the detonator or separate the detonator from the explosive. When dismantling bombs, you can also judge the nature of explosives if you have time. The light yellow block is TNT, the gray block is ammonium nitrate explosive, and the brown block or tube may be TNT but it may also be RDX (C4 used by bandits in CS). If you don't see explosives, you will see a sphere or cylinder with multiple detonators connected to it. Congratulations, you may have found the nuclear bomb!
In short, one of the principles of bombs is that they can be hidden, but they can't be thrown away, and they can't be dismantled. If you don't succeed, then you are dead!
Now, our anti-terrorism hero finally defeated the terrorists, rescued all the hostages and prepared to return with honor. But a big problem appeared: the pilot was unfortunately killed by terrorists. Who will fly the plane?
Question 4: How to fly a plane?
In a sense, airplanes are much easier to drive than cars. Rudder, control the plane to turn, step on the left and turn left, and turn right. Joystick, pull back to rise, push forward to fall, turn left to tilt the plane to the left, turn right to tilt the plane to the right (note, don't do it backwards! ) throttle lever, pull back to close the throttle and push forward to fill the throttle. The Wright brothers are embarrassed to design this thing. The front panel is an integrated flight instrument with altitude, speed and azimuth. There is a lot of information. Don't care too much. Just remember to keep the midline level. The plane can fly smoothly. Is it easy to operate? It doesn't matter if you don't need anything else. You can contact the tower for technical support. The ground crew will tell you what to do.
Is it easy to fly a plane? There are only four movements, ascending, descending and turning left and right. Note that the joystick of the plane can swing left and right, which can tilt the plane. With the rudder, you can do a lot of maneuvering. This may help to avoid ground and air attacks by terrorists. Let's take a quick right turn and a downward sideslip as examples to illustrate the operation.
First, turn the joystick to the right to tilt the plane to the right, then pull the joystick back to make the plane turn right at a great speed, and at the same time step on the right rudder to accelerate the plane to turn right, because this is a compound action. Under the action of two forces, the plane will descend rapidly from the right side and its altitude will decrease rapidly. At this time, you will see that the dashboard in front shows the inclination angle and descending height of the plane. If you move again, the plane will roll in the air. You should adjust the attitude of the plane in time, or the plane will dive all the way down. You will become a kamikaze player ~ Sure enough, it's really difficult for novices to advise you not to practice such fierce maneuvers. You just need to fly the plane back.
Here are some key points: 1. First of all, to get in touch with the radio station, you can make a phone call with an international emergency call sign. The method is as follows: find the radio and keep calling: "Medea! Maidai! This is xxx (your flight number is on the ticket). Please reply when you hear it. " . Generally speaking, the call frequency on the plane has been adjusted. Especially playing SOS probably won't work! Because SOS is a cry for help in Morse code, specifically, it is three lengths (signals)-three short lengths-three long lengths. No matter what language you use, English is the best. If there is no answer, then change the communication frequency and continue to call (different models adjust the knobs, but they are almost the same, you can ask the stewardess for help) until you get in touch with other flights or ground towers.
2. Get in touch with the ground tower and explain the situation on board, especially that you are not a pilot. Please guide the flight on the ground. Generally, in this case, the ground will tell you how to operate and guide you to keep the course in the right position. You just need to follow the guidance of the ground and adjust the course to the specified course, and the plane will resume automatic driving. For example, the heading is 32 1, and mud only needs to adjust the heading to 32 1. )
When you fly to the airport, you must land manually. If you want to aim the plane at the runway, the runway tower will tell Mud. It doesn't matter if you can't find it. Mud sees fire engines and ambulances the most. Even if the mud is not suitable for the runway, just find a place to land. All planes will make way for you anyway. Reduce altitude, slow down and land. If the fuel permits, you can practice a few more times and feel sure before landing. If necessary, you can ask the plane to guide you to land in front. Be sure to circle several times before landing, and drain all the fuel (just land a little) to prevent the plane from exploding or catching fire when landing.
4. The grounding of the plane is the key. When the plane lands at an altitude of10-15m, you should pull back the joystick to make the plane level off, at the same time, turn off the throttle, and gradually reduce the speed to below the takeoff speed (the landing speed is listed in the flight manual. If you can't find it, you can call the airport tower for technical support) to make the plane level off to an altitude of about 3m. At this time, you should continue to fall backwards. Keep your nose up a little. When the rear landing gear is grounded, turn off the throttle slowly and let the nose descend. When the landing gear is completely grounded, turn off the throttle and even brake. I believe the ground guidance will tell you in detail. (Note that the landing of the first three-point plane is a little different from that of the last three-point plane. The key is that when the level is three meters, the guide will definitely tell you what to do. ) a beautiful landing at three o'clock, and
Well, our anti-terrorism hero is finally back! Finally, just to remind you, you just finished fighting with terrorists, and when a large number of police came in. You'd better throw away your weapon and raise your hand. Shouting: "I am a hostage!" Never pose as a terminator and wait for the reporter to take pictures. Remember, you are not a robocop! Otherwise, you can't tell which confused police uncle treated you as a terrorist and blew your head off!
How to strengthen self-protection in sports? The best way is to exercise more. When your muscles get proper exercise, the hard injuries you get during exercise will be partially offset by your muscles, which can protect yourself well. Secondly, it is very important to do warm-up exercises, and finally, to enhance self-protection awareness, but exercise is not without harm. good luck
How to protect your feet from being pulled when doing exercise? According to the different types of exercise you do, the warm-up exercise in the early stage of each exercise is slightly different. Before exercise, you need to warm up, joint activities, jogging, squatting, and so on. If the ankle is often injured, it is suggested that you should train the muscle tissue of the ankle to achieve body balance, and it will be much better to warm up before exercise.
How to replenish water and drink water scientifically during exercise?
Don't drink too much at once.
Otherwise, the heart pressure is relatively high.
And you can't just drink water, you should supplement some electrolytes.