We all know that we feel so much better when we get enough sleep. But did you know, it can also affect your weight and your immunity? If you generally get less than 7 to 8 hours sleep a night you are more likely to be overweight. A lack of sleep can also weaken your immunity, increasing your susceptibility to infection.
Some studies have shown that people who get less sleep have increased levels of a hormone called ghrelin which stimulates appetite and increases fat storage. They also have reduced levels of leptin, a hormone that suppresses your appetite and promotes fat burning. So if you do not get enough sleep you are likely to eat more and gain weight.
One study found that an extra 83Kcal per day was consumed for every 30 minutes deficit in sleep.
On this basis, you could gain a stone in a year if you get 6.5 hours sleep per night instead of 7.5.
Sleep is not the only factor that affects your appetite – Discover more