i love walking. it's a must for me. my canine buddy insists on it. we haven't walked as much as usual this winter. we've had soooo much snow. it reminds me of winters when i was a kid. i also weight train 3 times a week. i do a simple routine that targets all major muscle groups and it only takes me about 15-20 minutes. i also do ab work everyday. if i don't, my back bothers me - sciatica.