Here's why you feel tired even after enough sleep!

Have you ever woken up after a good eight hours of rest and found that you are still feeling fatigued? Well, there is more to it than getting the right amount of sleep, recent research has shown.

AsapSCIENCE decided to research the possible reasons for tiredness despite getting enough sleep. In their latest video, they reveal that, if you know your actual sleeping pattern isn't the problem, then the second most common causes of fatigue are lack of exercise and poor diet.

"Study after study has found adults who began light exercise a few times a week reported more energy after six weeks," the video says. "People who exercise more regularly also report sleeping better, even though studies show they aren't sleeping any longer."

And if you rely on coffee to wake you up, it may actually be having the adverse effect. This is due to the fact that caffeine blocks the compound adenosine in your brain, which makes you feel sleepy at night.

"Consuming coffee or energy drinks less than six hours before bed can ultimately affect your sleep quality," the video says. "As a result, people who don't use caffeine often report feeling less tired in the morning."

Another key reason that you feel tired all the time is dehydration. A lack of water in the body thickens your blood which slows down oxygen and nutrients getting to your organs and muscles. This ultimately leads to sluggishness.

Speaking of drinking, alcohol has the opposite effect of water and heightens feelings of tiredness. It also diminishes sleep quality.

While diet and lack of exercise play a vital role in terms of fatigue, mental health also impacts on energy levels. Conditions including stress, anxiety and depression can drain your energy, making you feel more tired.

Watch the full video