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.
The men repeated the 3K time trial 3, 7, 14 and 28 days after donating. The researchers also measured the men's hemoglobin concentration on those occasions. Hemoglobin is a protein in red blood cells that carries oxygen from the lungs to the rest of the body. Three days after giving blood, the men were, on average, 5.4% slower than before giving blood. Performance remained compromised a week later, although not by as much. By the time trial 14 days after giving blood, the men ran as fast as they had pre-donation, even though hemoglobin levels remained 5.9 percent lower.