Original Article : How long does it take caffeine to kick in?
by : MARK MILLER
From : goviter.com
Ten minutes after that first sip of coffee, the subtle but invigorating effects of caffeine kick in, making getting out there and facing the day seem less daunting.
And in a surprising finding, one study found that decaffeinated coffee, which contains only 2 to 3 percent of the caffeine of regular coffee, also contributes (slightly) to a person’s alertness.
How long does it take caffeine to kick in?
You might feel drowsy and incapable of functioning at a high level until the caffeine hits your bloodstream. You may go from 0 to 60 in about 10 minutes, but you hit top speed after about 45 minutes, when 99 percent of the caffeine from your coffee, tea or energy drink has entered the bloodstream fully. Then it takes many hours for the caffeine to dissipate. Read Full Article….