The world is running 24x7. And to succeed match its speed even we need to run on our full capacity, until and unless we don't want to fall back and stand in as losers.

Do you know over 100,000 metric ton of caffeine is consumed around the world every year. Most of the caffeine is consumed in the way of tea and coffee.

But other than that caffeine is also available in forms of sodas, chocolate bars, and caffeine pills and even in beverages labeled as DeCaf. And all of this to keep ourselves awake and energize.

This is Now You Know and in today's video we will tell you what is it in caffeine that keeps us awake and energize when we consume them.

Caffeine helps us feel happy, focused, alert and energetic even if we hadn't had enough sleep. But with all that said it can also raise our blood pressure and makes up feel anxious.

Caffeine is evolved in plants, in human caffeine acts as a stimulant for the central nervous system.

It keeps us awake by blocking a major sleep hormones called as the adenosine. Our body need energy and that energy is received in the form of ATP.

When adenosine flows in our body and combines with our receptors our nervous system slows down the process and you fell sleepy.

Caffeine on the other hand delays the process of slowing down by simply blocking adenosine receptors.

Caffeine is also responsible for the growth of dopamine in our body. Dopamine is a happy hormone released by the brain that keeps us happy, excited and gives us pleasure.

Caffeine can also reduce the risk of some types of diseases like Alzheimer's and also some types of cancer. It can also increase your heart rate and blood pressure resulting in increased urination or diaheroa.

So, how much caffeine do you intake?