Mental exhaustin......?!

Best Answer - Chosen by Voters

I've been working in an office for 15 years and this is what works for me.

3 or 4 10 minute breaks and one 20-30 minute lunch break. i use the lunch break to zone out or meditate.

Also, at work, I consume very little refined carbohydrates and saturated fats, (burgers, sugar, pasta, rice and bread etc). i feel great all day! Usually!