Question

What makes people go through an entire day without being tired?

Answer 1

Prioritize Your Sleep.
Fuel With Protein.
Limit Caffeine and Alcohol.
Make an Effort to Move More.
Drink More Water.
Find Time for Fun.
Manage Negative Emotions.

Answer 2

The best option if a good nights sleep, but coffee, Red Bull, or any other source of caffeine or stimulant does the trick to different levels.