Head to Settings and tap on the More tab at the end of the Wireless & networks tab. Step #1. image. Once inside, swipe to the bottom and hit the Emergency broadcasts button.
I have also heard that drinking peppermint tea (herbal) is good.The time it takes for the body to eliminate one half of a caffeine dose is normally between 3 to 12 hours. It is called the half-life of caffeine. Source(s): http://www.coffeefaq.com/site/node/127. seashells Â· 7 years ago. Thumbs up.
The more caffeine that you take in, the longer your withdrawal period is likely to be, according to research at Johns Hopkins University published in the October 2004 issue of âPsychopharmacology.â Researchers found most people developed withdrawal symptoms within 12 to 24 hours after stopping caffeine.affeine withdrawal symptoms don't last forever, though. Many people use caffeine to kick-start their energy; some people use it first thing in the morning to get going, others may use it as an afternoon pick-me-up. Still others drink coffee from first thing in the morning until they go to bed at night.