I retrained as a personal fitness trainer at the age of 60. I specialise in people over 50, although in reality most of the people I work with are over 60. I don't think you can over-estimate how important keeping active is. Exercise doesn't need to be going to the gym and pumpiing iron. I work with younger people who have done no exercise and older people who have always exercised. It becomes apparent immediately who has the better quality of life. I am going to keep active and try to encourage others to do so because I don't want anyone else to wipe my bottom as I get older, thank you very much. Falls and their complications are one of the major causes of death in the over 75s. Strength, flexibility and balance exercises can help prevent these. You also need activity which makes your heart beat slightly faster and makes you a bit breathless. The minimum recommendation is 30 minutes per day, but you can break this into 3 x 10 minute sessions, if 30 minutes all at once seems too much.