Imo you need to become awesomely fit and maintain that level for at least a year before your late 30's. I believe this gives your body an ability that it simply never develops otherwise. I was a serious athlete (and I smoked too) into my early 30's. In fact my fitness level at age 29 was on par with elite Olympic athletes proven by laboratory testing. Fast forward to my early 50's--I had some injuries and truth be to…
Being fit is a big word and somehow not easy to achieve especially for people sitting in front of the monitor most of the day.
Do you have any advice on how to be fit in the 30s? maybe any specific exercise(s) that you'd recommend?