Simple vocal tics consist of sounds that do not form words, such as: throat clearing, grunting, coughing, and sniffing. The DSM-IV divide tic disorders in three main categories: transient tic disorders, chronic motor or vocal tic disorder and Tourette disorder.
If you are healthy person who has been exercising regularly, after you donated blood, you wonder whether you can exercise right after that. The answer is no. You should only exercise after at least 5 hours of resting. Do not run, swim, do weight training or other rough movements during the first 5 hours of donation. In fact, even after that period, your competitive performance in the court or track may be affected.
VO2 max dropped by 15% and time to exhaustion decreased by 19% during the exercise test two hours after a blood donation. VO2 max was still 10% and 7% lower than pre-donation levels at two and seven days post-donation, respectively. The results of plasma donation are more interesting: