Too much sleep does easily lead to obesity, but this is only one aspect, not all factors. This is closely related to people's physical fitness, heredity, diet and other living habits. For example, the Journal of the Royal Society published a historical record describing a person who was particularly good at sleeping at the end of 17, named Samuel Hilton. Hilton is strong, not fat.

People need sleep to survive, and adequate sleep is good for health. However, if the sleep time is too long, the whole nerve center will be inhibited for a long time, which will lead to organ dysfunction and weight gain. However, the study found that lack of sleep can also induce obesity, at least in the short term, so the sleep time should be adjusted appropriately. The average sleep time of teenagers is eight hours.

Reducing sleep time will affect people's normal metabolism, so that insulin in the body can't metabolize glucose normally, which will lead to obesity, diabetes and heart disease, especially for teenagers. Lack of normal sleep will seriously affect their physical function. People who sleep more than 8 hours and less than 4 hours a day will gain weight.