Husband always likes to play computer until two or three in the middle of the night, will it affect his health?

Staying up late may cause cancer. One of my relatives kills pigs. Because they all worked in the middle of the night, slept during the day, and died of brain cancer in their forties. Experts believe that a good sleep is the simplest and most effective way to prevent cancer. Because the climax of human cell division is in the middle of the night, if you often stay up late, it is difficult for the human body to control the process of cell division without mutation and become cancer cells. So get enough sleep for 7-8 hours every day and go to bed before twelve o'clock. Talk to your husband.