Sleeping and our metabolism have a strong relation and one affects the other in significant ways. Consequently, it has a remarkable effect upon our body functioning as well. Metabolism works differently when we sleep and when we are awake. According to various researches and their conclusions, our metabolism rate decreases by up to 15% during sleep. So, if someone is suffering from sleep deprivation that means that he or she is spending more hours awake, and that in turn means that his or her metabolism is working more than it should do normally. More metabolism means burning of more calories.

Burning extra calories has a direct bearing on our day to day activities. Increase of metabolism means that we are burning more calories and spending a lot of energy. As a result we feel fatigued, dizzy and devoid of energy. We are unable to perform our day-to-day tasks efficiently. Even our mental tasks, that require concentration, are affected badly and we perform poorly in both the spheres.

Lack of sleep also triggers higher level of release of cortisol hormone, which is responsible for promoting hunger. Additionally, it lowers release of a hormone called Leptin. Both these hormones indicate whether our body is hungry or not. High Cortisol and low Leptin result in hunger cravings and urgent need for carbohydrates for the body.

These are few of the interconnections between sleeping and our metabolism that can have diverse outcomes affecting our body and daily activities.