I am 59 and have been spinning for about 2 years now. Spinning got me into shape -i lost weight and built up lower body strength - and the experience convinced me to take up cycling (which i hadn't done since childhood). it's important to wear a heart rate monitor - determine your proper range and don't work beyond where you should be -- you'll enjoy it a lot more. i have also purchased a kurt kinetic trainer - i use it when i'm not able to get to spin - this trainer ( and an Ipod blasting disco in my earfones) can get my heart rate up to 80% in a hurry!