It is unlikely that cancer will heal itself with two hours of exercise a day. A proper exercise every day can improve the resistance and reduce the probability of cancer compared to those who do not exercise, because there are reports showing that a proper exercise a day can reduce the cancer-promoting hormones produced by body fat. Generally, people diagnosed with cancer should undergo timely and effective treatment to stop the progression of cancer and prolong their lives, and self-cure is unlikely. However, if you have enough confidence and do some aerobic exercises to improve your immune function and physical fitness, the possibility of self-cure is not completely excluded.