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.
1 doctor responded. How long does it take for the brain to heal from a severe concussion bc i had brain surg in 1993-95 ans the concu more How long does it take for the brain to heal from a severe concussion bc i had brain surg in 1993-95 ans the concussion was 9/16/13. 2 doctors responded.