" Some sources point to the origin of a runner's high being increased endorphin production as a result of exercise. Running injuries There are many injuries associated with running (due to it being a high impact activity) . Common injuries are "runner's knee" (pain in the knee), shin splints, pulled muscles (especially the hamstring), "jogger's nipple" (soreness of the nipple due to friction), twisted ankles, and Iliotibial Band Syndrome. The most common running related injuries are due to over-use. Repetitive stress on the same tissues without enough time for recovery or due to improper form or muscle imbalances, leads to many of the above. Generally these can be minimized by warming up beforehand, wearing proper running shoes, improving running form, performing strengthening exercises, and getting enough rest. There is a very strong consensus among the running and scientific community that all of those can be very effective in minimizing or recovering from running injuries. Puma Running Man Another injury prevention method that is very commonly recommended in the running community, but is actually controversial is stretching. While stretching is often recommended as a near requirement to avoid running injuries, the relevant medical literature does not represent as much of a consensus that it is effective. "

" Generally these can be minimized by warming up beforehand, wearing proper running shoes, improving running form, performing strengthening exercises, and getting enough rest. There is a very strong consensus among the running and scientific community that all of those can be very effective in minimizing or recovering from running injuries. Another injury prevention method that is very commonly recommended in the running community, but is actually controversial is stretching. While stretching is often recommended as a near requirement to avoid running injuries, the relevant medical literature does not represent as much of a consensus that it is effective. Some studies find that it is and some find that it really isn't helpful at all. A 2002 systematic review of 27 peer reviewed studies found that there was not sufficient evidence to support the claim that stretching was effective in injury prevention or soreness reduction. [1] Most members of the running community find that the inconsistent study methods and the failure to establish proper controls and find proper stretching methods is the reason behind the conflicting studies, and stretching is in fact helpful, or at least not harmful. Asics Kayano Man Running Shoes Types of running events Track running Road running Cross-country running Trail running Fell running Classification of running by distance Sprints Middle distance Long distance Ultrarunning Silent Running is a science fiction movie made in 1972, directed by Douglas Trumbull and starring Bruce Dern as the protagonist Freeman Lowell. It was made with a very limited budget but has since achieved a cult following. "