I got my 61 year old fiancé into weightlifting. We work with a trainer three times a week. After 8 months she looks better than ever. Toned. Loose skin filling out nicely, no bulking. I’m 64, and yesterday did 720 on the leg press. I started at 59 and look better than I did at 40. Feel better, too. Lift weights. You’ll be glad you did. Don’t go crazy with the weight though to protect your joints. Some of those women you see lifting 100’s of pounds will likely have problems down the road.
Bicycles and iron are the fountain of youth.