I do a lot of walking in my 40s and 50s. Little else really, just a bit of swimming and cycling, occasional golf and a couple of ski holidays. I’ve lost 8 stone in weight over that time and reversed type 2 diabetes. I feel and look healthier than ever, complexion better, no aches and pains, lots of energy, and blood tests come back normaL after previously showing signs of high cholesterol, fatty liver and low kidney function. . I went to the gym 3 or 4 times a week in my 30s to do weights, cardio, etc., but it really didn’t have much effect. Daily walking 8-10k steps has literally been life changing but it’s a very long term thing, just losing a pound or two every few weeks, doing down a clothes size every few years. Not for the impatient.