1 The scientific name for caffeine is 1,3,7-trimethylxanthine. 2  Caffeine is considered to be the most commonly used psychoactive drug in the world. 3  Coffee, soda, and tea are the most common sources of caffeine in the American diet.  Discontinuation of regular caffeine use may produce withdrawal symptoms.
For most patients, post concussion symptoms go away within a few days to several weeks after the original injury occurs.[In others, symptoms may remain for three to six months.In a small percentage of patients, symptoms may persist for years or may be permanent.
In a mild TBI or concussion, the brain has the ability to stop the cellular damage with its own built-in antioxidant systems. This is why most mild concussion symptoms only last a few days to a week and resolve by themselves. The real problem occurs if a second injury happens while the brain is still healing.