[friedman23]

Agreed, everyone is different but I do think there is some commonality in all the different responses in that you can find the answer to your lack of energy in either

sleep, diet, hydration, exercise (or general activity), and micronutrients

[rg111]

30 minutes of exercise 4-5 days a week, strictly regularly, will make a difference in any healthy person's life. I can guarantee it.

Sleep is also a big factor. More is almost always better.