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 effectiveness of caffeine varies significantly from person to person, due to genetics and other factors in play. The average half-life of caffeineâthat is, how long it takes for half of an ingested dose to wear offâis about five to six hours in a human body.Women taking oral birth control require about twice as long to process caffeine.he effectiveness of caffeine varies significantly from person to person, due to genetics and other factors in play. The average half-life of caffeineâthat is, how long it takes for half of an ingested dose to wear offâis about five to six hours in a human body.