I just received wrist and ankle weights for Christmas...I've been doing lots of walking and ab crunches (etc) lately, so I think this is a great way to help me "boost things up" on my walks. Call me paranoid, but putting weights on your wrists - is that safe - will it damage my wrist any way? I don't know much about them at all. Also, will one-pound weights even do much or should I go to 5 pound? I'm pretty much a new beginner to weights. Thanks everyone.