I am 63 and have trained since I was 14.I now work my body parts(chest-back -shoulders- biceps- triceps-legs) once a week and in four days.The sets are between 9 and 12 per body part.I see a doc. regularly and am on HRT.It would be advisable to get a physical and blood test at least once a year to see where your at.Just an old mans opinion.