In modern days, student who are studying everyday, or people who have too much work to do, and always sleep at late night. Sleeping at the late time is always the main problem of most students and worker. So,they want to staying alive all the time,and how do they staying alive? By drinking beverages that contain Caffeine. It will makes a high energy for a short period of time. There are something about caffeine that you might not know. Caffeine is the most commonly used drug in the world. Although the consumption of low to moderate doses of caffeine is generally safe and has many proven health benefits, caffeine is causing quite a stir as a potential source for certain health problems with continued use.