Summertime swimming need to know
　　Hot weather is one of the most favorite sports in swimming. Recently, red eye sporadic cases increased significantly, and to the public swimming pool swimming improper protection has a great relationship. In addition, due to insufficient warm-up before swimming sprain of waist and neck joint as a result of the award-winning.　　Experts caution that some people like to drink a little wine into the water, swimming or intermittently to drink beer, everyone knows that alcohol would hinder the transformation of glucose in the body and reserves, causes a weak heart palpitations, nausea, sweating, low blood sugar symptoms. Swimming for more than 2 hours easy shiver spasm
　　Some swimming enthusiasts a dip in the water just half a day, such as body goose bumps appear, begin to shiver, they wake up they are playing too much. There are usually three phase reaction to cold stimulation of the skin. After the first period is in the water, the cold stimulus, vasoconstriction of skin, skin color is pale. Phase II is to stay in the water after a certain time, accelerate the blood circulation, increased heat, transferred from pale pink skin. Phase III was staying in water for too long, the body heat generated than is dispersed in water heat, destruction of thermoregulatory function, arterial systolic and small veins will appear expanded, resulting in bruising of the skin, lips, black, body shiver “goose bumps”, or even spasm. After dinner swim before dinner will affect the digestive tract
　　Drink beers sides swim? the idea may sound very pleasant, but in fact is not healthy. Drunk swimming, reserve large amounts of glucose in the body consumption, Hypoglycemia may occur. Alcohol can inhibit normal physiological function of the liver, impede the transformation of glucose in the body and reserves, resulting in accidents. At the same time, alcohol affects the brain’s judgment, also increases risk of danger. Therefore, when swimming is best not to drink. In addition, after swimming has consumed a lot of energy, very vulnerable to hunger. Landed some people can’t wait to eat a good meal.
　　Experts pointed out that swimming should be resting for half an hour after eating, otherwise they will be a sudden increase in burden of the gastrointestinal tract, can cause gastrointestinal diseases of long. Bogey swimming after dinner before meals, swimming on an empty stomach will affect the appetite and digestive function, weak also dizziness occurs in swimming accident and full swim will also affect digestive function, also have stomach cramps, vomiting, abdominal pain.