Science has linked poor slumber with high blood pressure, a weakened immune system, weight gain, and more negative consequences, reports CNN.

While you sleep, your brain is busy. It’s preparing for the next day, sorting your experiences and making new pathways for learning.
To capture newly acquired information, absorb fresh skills and form key memories — as well as to retrieve them later — you need plenty of sleep time to let your brain do its work. A lack of sleep therefore impacts your ability to pay attention, learn new things, be creative, solve problems and make decisions.