Walking for more than 30 minutes every day can bring significant health benefits. Adults should do at least 150 minutes of moderate-intensity aerobic exercise every week, such as brisk walking, which means walking for 30 minutes every day five days a week can meet this suggestion. Sticking to such exercise can effectively reduce the risk of chronic diseases such as heart disease, hypertension and diabetes, and also help to control weight, enhance cardiopulmonary function and relieve stress. Walking helps to prevent many dangerous physical diseases, including heart disease and stroke, hypertension, osteoarthritis, obesity, depression, certain types of diabetes and colon cancer. It can help those who don't exercise at present, or seldom exercise, but want to take part in a regular exercise that saves time and money.