1. False. Don't let the snow pile up. Shovel frequently, removing smaller amounts at a time to reduce the need for heavy lifting.
2. True. Do back and side bends before you go out, lift properly, and drink water before and after. If you're a bit out of shape, don't over-exert yourself.
3. True. Avoid lifting heavy shovel fulls of snow. By pushing, you also avoid twisting or turning movements that could injure your back. Use a lightweight, pusher-type shovel.
4. True. As with any heavy object, bend your knees when lifting, and keep the shovel as close to you as possible.
5. False. Rest if you feel tired. Stop shoveling immediately if you feel chest or back pain. The combination of lifting and cold weather can lead to a heart attack.