As someone who is now addicted to Lorazapem, and struggling to taper off while experiencing PCS symptoms, I can say that daily benzo use definitely slows down recovery from a concussion and is likely causing harm that I'm not yet aware of. I was prescribed Ativan for sleep/insomnia issues immediately post concussion and took only 12 doses and was hooked. I realized this 3+ months ago and am still struggling to taper down my dose. Had I known about how addictive this drug is, I would never have taken 1 pill. I only wish I had found this board earlier.