Walking can add minutes to your life. This enables you at 85 years old to spend an additional 5 months in a nursing home at $7000 per month. I like long walks, especially when they are taken by people who annoy me. I have to walk early in the morning, before my brain figures out what I am doing. Every time I say the dirty word 'exercise' I wash my mouth out with chocolate or vodka. The advantage of exercising every day is so when you die they'll say , "Well, he looks good." If you are going to try cross-country skiing, start with a small country. I know I've gotten a lot of exercise the last few years---just getting over the hill. We all get heavier as we get older, because there's a lot more information in our heads. (That's my story and I'm sticking to it.) AND Every time I start thinking too much about how I look, I just find a Happy Hour and by the time I leave, I look just fine!