Can running prevent breast cancer?

Less exercise leads to a 24% increase in the recurrence rate of breast cancer, while more exercise significantly reduces the recurrence rate of breast cancer. Regular exercise of moderate intensity for more than 30 minutes a day, 3-5 days a week, can reduce the incidence and recurrence rate of breast cancer. Although 66% of early breast cancer patients do not reach the recommended amount of activity, it still shows that increasing exercise can improve the quality of life.

In a long-term follow-up, it was found that the survival rate of running was 25% higher than that of brisk walking. An authoritative medical journal pointed out that if breast cancer patients can persist in 150 minutes of moderate-intensity activities per week, their ten-year survival rate will increase by 6%.

Running can prevent breast cancer, the fundamental reason is that it can control the body's weight gain. Women who gain weight rapidly after the age of 18 have almost twice the risk of developing breast cancer after menopause compared to those who maintain a normal weight for a long time.

Compared with women who walk less than 3 hours a week, women who walk more than 7 hours a week have a 14% lower incidence of breast cancer. In addition to walking for at least 1 hour a day, the most active women who also do high-intensity exercise such as running, swimming and tennis every week have a 25% lower risk of breast cancer than women who do not like to exercise. The project leader concluded that exercise can significantly reduce the risk of breast cancer in women, and longer exercise time and greater intensity can better prevent breast cancer. Doing moderate-intensity exercise for 30 minutes a day, or 3 to 3.5 hours a week, can reduce the risk of breast cancer by at least 20%.