Lack os sleep can cause your appetite to increase- IMAGE - Women's Health & Fitness

Ghrelin and leptin

What is it?

Ghrelin and leptin are a double act that together regulate appetite. Leptin is secreted by fatty tissue and regulates energy by sending a signal to the brain that you are full, while ghrelin, a shorter-acting hormone secreted by the gut, stimulates appetite.

Is it out of whack?

Research suggests that when you don’t get enough sleep, leptin levels dive, so you don’t feel full after a meal, and ghrelin levels rise, which overstimulates your appetite. A study published in the journal Sleep Medicine found that leptin levels decreased by 18 per cent and ghrelin levels increased by 28 per cent when sleep was restricted to four hours per night over two nights. Essentially, when we don’t get enough sleep, we feel hungry, even though we’ve eaten enough.

Quick fix: Keep your ghrelin and leptin levels healthy with good sleep hygiene. Go to bed at roughly the same time each night and get the requisite seven to eight hours of shut-eye.