When it comes to snow, human nature seems to be either to play in it or move it out of the way. Snow play has plenty of hazards, from slush balls to the perils of downhill slopes -- winter sports are estimated to injure about a half million of us each year.
But that nasty chore of shoveling, scraping or blowing snow and ice is nearly as dangerous to our health and more onerous because it's almost always an involuntary activity.
A study published in mid-January in the American Journal of Emergency Medicine concluded that there were an average of 11,500 snow-shoveling injuries and related medical emergencies each year from 1990 through 2006.