#1
I know but this is one best book I came across keep all aside here is the conclusion:
Try as much as possible to be asleep by 10 p.m. so that you can start your day by 5 a.m. This practice will help you take advantage of the solitude and tranquility of mornings to optimize your body, soul, and mind.
Some "

Spending time with people that drain you of your zeal to become exceptional is dangerous.

When we don’t sleep enough, it impairs productivity and minimizes your performance as well as reduces your happiness and erodes your health.