Insomnia Or Sleep Apnea
A lack of sleep can increase chances of obesity. The sleeping process, which helps to regulate hormones — including those that maintain a healthy weight, can potentially be disrupted. Some examples include ghrelin and leptin.
Ghrelin is used to notify the body of hunger, and leptin is the exact opposite. A lack of sleep can end up jumbling these hormones. For some people, that may cause their ghrelin hormones to becomes more prevalent, leading to overeating. A lack of sleep can also impact metabolism levels in general.
Insufficient sleep, which can be caused by issues like sleep apnea, can also decrease energy levels to get exercise and burn calories. An increased need of the hormone insulin is another evident effect, and will be discussed later.