What are the benefits of swimming often? The limbs are exercised. When swimming, use the strength of the limbs to push the body forward, and keep the waist and abdomen muscles swimming. Therefore, swimming can exercise many muscles of the whole body, help to shape the body and increase the proportion of muscle tissue.
Help to lose weight. Swimming can consume calories better, and the calories consumed by swimming for 60 minutes can reach 400~700 calories. At the same time, you can exercise your waist, hips and limbs, and you can lose weight.
Improve vital capacity. When swimming, the breathing frequency is matched with the movement, so that each breath is lengthened, the elasticity of lung tissue increases with time, the vital capacity is expanded, and the risk of lung disease is reduced.
Improve immunity. Under the stimulation of cold water, the human body can easily adapt to temperature changes, improve immune regulation and enhance resistance. Improve memory. Studies have shown that swimming can increase blood flow to the brain, which is beneficial to brain health, keep memory and delay Alzheimer's disease. Adjuvant treatment of constipation. Sticking to swimming can speed up the peristalsis of gastrointestinal tract and help relieve abdominal distension and constipation.
Who are not suitable for swimming? Patients with ear diseases. People with perforated tympanic membrane can't swim, so as to avoid water flowing into the middle ear cavity through the perforation, leading to acute otitis media; Deaf-mute people can't swim either, because the organ regulating balance in the ear has been damaged, and the balance force is weakened, and they may drown when swimming.
After drinking, on an empty stomach, full. Alcohol can inhibit the central nervous system and weaken the contractility of the heart. Vomiting, nausea and dizziness may occur after drinking alcohol. In addition, drinking alcohol can promote systemic vasodilation, lead to a drop in body temperature and promote energy consumption, and swimming after drinking may cause drowning risk.
You can't swim immediately after a full meal, so as not to affect digestion and lead to indigestion, vomiting or abdominal pain. Can't swim on an empty stomach, otherwise it will reduce appetite and weaken digestive function; It is prone to hypoglycemia, and may even drown because of dizziness and fatigue.
People with infectious diseases. You can't swim when you have emphysema, tinea corporis, conjunctivitis or trachoma, as well as liver disease and highly contagious skin disease, otherwise your condition will get worse. In addition, you can't swim when your skin is damaged, so as not to cause infection.
Patients with severe heart disease and high blood pressure. When swimming, the heart load is heavy and the oxygen consumption of the whole body increases. Patients with heart disease may not be able to provide enough blood because of insufficient myocardial contraction, and may faint when swimming, thus causing accidents. In addition, patients with hypertension have weak vascular elasticity, and may have dizziness, angina pectoris and other symptoms when swimming.