I was a roller for about 3 years with 1 year (my last year) being extremely heavy. By extremely heavy I am talking about 100% unsafe abuse of rolling every Friday and Saturday night and taking handfuls of pills just to feel anything because pills were more than 'available' for me and I had built a very high tolerance. Long story turned short, I had 2 very bad rolls where I am surprised I am alive and 2 hospital visits where they told me I overdosed on amphetamines (guess that was in the pills I took). The doctors said I had dangerous low levels of potassium which caused my heart palpitations, I had severe panic attacks and anxiety where I had to take Paxil for about 6 months to help replenish my serotonin levels which were pretty much tanked, and I had pretty extreme short term memory for several months (almost a year) after I stopped rolling. I would say about after a year to a year and a half I felt back to normal with no more panic attacks, heart palpitations, and my memory feels like it is normal again --the only thing "off" today is I can't ever take anything that will make me feel weird, or high, or in anyway where I am not in control. I can't smoke weed, roll, take pain medication like Vicodin, and I cant even get drunk without getting anxiety. My advice: don't get sucked into the fun of it all and make it your life for the weekends. The fun is what is addicting, not the drug. And the "fun" is what will blind you from realizing that as good as the drug makes you feel it will strike like a snake and cause long term and even possible permanent health problems if it doesn't kill you.