20:05

I Quit Coffee for 6 Months

14:26

i quit coffee for 30 days (and it ruined my life)

9:17

Doctor Mike Hansen: Coffee is Killing You... Slowly.

13:42

I Abruptly Stopped Drinking Caffeine And This Happened

11:43

Caffeine & ADHD

18:37

I QUIT Caffeine & It's Changed My Life - Withdrawals & Benefits

11:01

#1 Sleep Expert: "Even A Little Caffeine Does This To Your Brain & Body!" | Matthew Walker

15:34

Is Caffeine Bad For You? What The Science Says!