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.
For example, after a concussion, a patient may have difficulty with balance and coordination, memory, and speech. A concussion is typically short-lived. Most people recover within 7 to 10 days. Unfortunately, once an athlete has sustained a concussion, he or she is at greater risk for additional concussions. Repeat concussions can have long-term consequences, so prevention is essential.