You may find this hard to believe but studies have shown that running can reduce the risk of cancer! According to the National Cancer Institute, individuals who exercised regularly showed a 40%-50% lower risk of getting colon cancer. Women who exercised regularly showed a 30%-40% lower risk of getting breast cancer despite their family history. Uterine cancer can be reduced by 38%-46% for women because running helps decrease estrogen levels and lowers obesity rates, which are both factors for uterine cancer. Studies have also shown that active people are much less likely to get lung cancer.