Glasshead is right except for the alcohol. The concussed brain will be much more intolerant of alcohol. You will likely get a hang-over from a mild buzz. The research shows that the one serving per day is usually well tolerated but more than that is not.

The first neurologist that I ever saw for PCS told me to avoid it completely. That was back in 1971, long before the concussion understanding of today. He was dead right. I can tolerate one serving but if I have a second, I will have PCS foggy brain the next day.

I believe the simpler and lower stress lifestyle that is best to prevent relapsing PCS also is good for general brain and emotional health. Research shows that a healthy brain is damaged by stress, even if it is only working hard in a multi-tasking way. Planning ahead for stressful events and tasks by resting up before or planning time to rest up afterward would be well advised.