Why does caffeine appear in coffee beans?
As a kind of pesticide, caffeine can effectively kill the pests gnawing the trunks. Although strictly speaking, coffee is fatal, it can also kill 1 gram pests but not millions of people. But if you really want to calculate how much caffeine will bring half of mortality to you, you can multiply your weight by 150 milligrams that the gross number is the sum of tons of cups of coffee. That's why we never hear about any adult died because of drinking coffee. As coffee is also discharged from our bodies by different method when we drinking coffee continually, such as urinating or sweating.
A thing we must keep in mind that although caffeine can help us to be refreshed and decrease fatigue strength, we should not ingest too much caffeine or use a wrong way to ingest it. We all know that caffeine leading a person to death is by exhilarant or diet pills, or even the caffeine drugs with high purity.
As coffee becomes more and more popular in modern society, you should enjoy a cup of tasty coffee and go back to work better!
The one way valve advising!