Coffee contains caffeine, which will excite sympathetic nerves after entering the body, thus eliminating drowsiness, improving blood circulation and making the body feel warmer and not tired. Why? Refreshing? Effect.
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One of the benefits: it prevents allergic attacks. Asthma or allergic rhinitis is caused by parasympathetic nerve excitation of allergic system. If we can stimulate the sympathetic nerve and inhibit the parasympathetic nerve, it will help to prevent the attack. Especially for patients with severe allergies, some slight incentives can cause physical discomfort, coupled with psychological fear of allergies, often out of control. Therefore, it is suggested to use caffeine to have a cup of coffee in advance (the patient can feel it himself) when allergies and asthma are about to attack, which is quite preventive. Besides the' exciting effect' of caffeine, do patients have psychological problems? Have you ever had coffee? The sense of security is also less prone to attack.
Refreshing
Caffeine has strong stimulation and fragrant smell, which can easily stimulate the central nervous system through the brain-blood barrier, promote brain activity, make the mind more sober, lively and sensitive, fully concentrate thinking ability and attention, and improve work efficiency; Can stimulate the brain and skin, and promote feeling, judgment, memory and emotional movement.
Strong bones and muscles, waist and knees.
Caffeine can make muscles contract freely, increase tendon strength, reduce exercise valves, increase body sensitivity and improve motor function.
Appetizing staple food.
Caffeine can stimulate sympathetic nerve, stimulate gastrointestinal secretion of gastric acid, promote digestion, prevent bloating and gastroptosis, promote gastrointestinal hormones and peristalsis hormones, and make them pass quickly.
Reduce fat and food accumulation.
Caffeine can accelerate the decomposition of fat, improve the body's metabolic rate, increase calorie consumption, and help to reduce fat and weight.
Get rid of dampness.
Caffeine can promote renal function, expel excess sodium ions from the body, increase urine output, improve abdominal distension and edema, and help to lose weight.
Promoting blood circulation and removing blood stasis.
Linoleic acid contained in coffee can hemolyze and prevent thrombosis, enhance vasoconstriction, promote blood circulation and relieve headache caused by vasodilation, especially migraine. In addition, it can promote venous return, moisturize skin, restore muscle surface elasticity and prevent cardiovascular diseases.
Happy color
A small amount of coffee makes people feel excited and happy, put aside troubles and melancholy, relieve stress and relax.
Clearing lung and relieving asthma
Caffeine can promote sympathetic nerve, inhibit parasympathetic nerve and avoid parasympathetic nerve excitement and asthma.
Dehumidification and deodorization
Caffeine contains tannin, which can deodorize and eliminate garlic and meat flavor.
shortcomings
Sure, what do you mean? Too much? , again good things, also want to? Enough is enough? . Otherwise, whether drinking before or after meals, excessive caffeine will cause palpitations (heart beating badly), and even side effects such as trance and unstable walking center of gravity.
In principle, two or three cups of coffee a day are appropriate. Most people will feel sick if they drink four or five cups, so be careful. No matter what kind of stimulating drink, it is best not to exceed three cups a day.
A cup of coffee a day is enough to induce anesthesia. If a regular coffee drinker drinks half of the coffee, it will cause them headache, muscle pain, fatigue and inattention. Researchers suggest that coffee addiction should also be regarded as a mental illness.
Drinking too much coffee can also lead to paralysis.
If you drink more than three cups of coffee at a time, you will feel nervous, anxious and short of breath.
Drinking too much coffee can also lead to calcium loss.
Drinking coffee when diarrhea, the diuretic effect of coffee, will promote the discharge of water in the body and aggravate diarrhea.
Attention/moderation
Drinking coffee has many benefits, but don't overdo it. Drinking 1~2 cups a day is an appropriate amount. If you drink too much, you may have mild symptoms of caffeine poisoning (it is easy to take 500~ 1000 mg a day), irritability, anxiety, palpitation, diarrhea, even convulsions, hypokalemia, arrhythmia, and even the risk of heart paralysis.