Free radicals are toxic chemical compounds which can cause oxidation inside the human body to hurt the human tissues and cells. At the same time, various chronic diseases can be caused and the aging can be induced. Moderate free radicals are beneficial to the human body to prevent the danger caused by external chemical substances. However, excessive free radicals can produce strong oxidation which can hurt the cells to cause aging, allergy and cardiovascular diseases. Therefore, in order to defer the aging, it is necessary for people to resist oxidation in daily life so as to keep healthy and young. Generally speaking, four kinds of nutrients and some good habits can help you restrain oxidation. 

Vitamin C is a kind of effective anti-oxidant for people to make use of. Most of the green fruits and vegetables contain abundant vitamin C which can maintain the normal functions of cells and normal metabolism inside the human body. At the same time, the detoxification of liver can also be protected. Vitamin E can also resist oxidation for people. The foods containing rich vitamin E mainly include fish, eggs, soy bean and green vegetables. is abundantly contained in tomatoes. Although vitamin C can be seriously destroyed, more lycopene can be found in cooked tomatoes. Beta-carotene is mainly contained in green vegetables and yellow fruits, such as carrot, spinach and hami melon. Generally speaking, fruits and vegetables in deep colors contain abundant beta-carotene.

Except these nutrients, good habits in daily life can also restrain oxidation for you. First, people should quit smoking and avoid second-hand smoking as far as possible in daily life. Second, people should reduce the oily smoke during cooking dishes. They can use olive oil. The intake of oil-fried food should also be decreased. Third, people should not take any medicines if possible. Nearly all the medicines contain toxic substances which can sometimes produce free radicals. Fourth, people should reduce the harms caused by the pollution of agricultural chemicals. For example, people should wash vegetables and fruits in salty water carefully in everyday life. Fifth, people should increase the intake of water, fruits and vegetables. Some people like to eat too much meat for dinner, which is rather unhealthy. The ratio between fruits and vegetables and meat should be 7:3. That is to say, people should maintain a balanced diet in daily life. It is beneficial for people to form these habits to alleviate the oxidation.