Lack of sleep disturbs hormones which can affect your weight – as can high levels of stress.
Lack of sleep (both duration and quality) is linked to diseases such as cardiovascular disease, depression, and obesity. Specifically, when it comes to obesity, a lack of sleep can disrupt hormones such as increased cortisol (a stress hormone linked to weight gain) and increased ghrelin (a hormone that stimulates appetite and cravings), and decreased leptin (a hormone that tells your brain when you are full). High levels of stress hormones can make you more likely to crave sugary, fatty and salty foods. Managing sleep problems can help you have more energy, eat less and generally feel better. Reducing day-to-day stress levels where you can or improving ways you deal with stress can lead to positive effects on these factors, as well as on your overall weight-management plan.