. Healthy use time needs to be changed in the settings. Open the settings, slide down after entering, click Smart Assistant, Smart Assistant, there is a time usage situation, and just explain the healthy usage time in it. When we enjoy the infinite space brought by computers and networks, we unconsciously pay the price of health. Facing the computer for more than three hours every day will have great influence on eyes, arms, shoulders, cervical vertebrae, lumbar vertebrae, skin and hair.