What are the health effects of exposure to cold? Cooling of body parts may result in various cold injuries - nonfreezing injuries, freezing injuries - and hypothermia which is the most serious. Nonfreezing cold injuries include chilblain, immersion foot and trenchfoot. Frostnip and frostbite are freezing injuries. Toes, fingers, ears and nose are at greatest risk because these areas do not have major muscles to produce heat. In addition, the body will preserve heat by favouring the internal organs and thus reducing the flow of blood to the extremities under cold conditions.
'Saturday Night Live': Backpack Kid steals Katy Perry's show A dancing teen named Russell Horning has replaced Left Shark as the Internet's favorite dancer after appearing with Katy Perry on 'SNL.' Post to Facebook
âAs a general rule, to prevent injury, your childâs full backpack should weigh no more than 10 to 20 percent of his or her body weight.â. How a student wears his or her backpack is often just as important as its overall weight.ereâs a way to calculate the maximum amount of weight your child should tote: Childâs weight x .15 = max backpack weight. For exampleâ¦. 50-pound child should carry a maximum of 7.5 lbs.