Chicken and egg. From what I see, the highly motivated and socially competitive do weights. I suspect you are trying to reverse causation by suggesting that doi

Chicken and egg. From what I see, the highly motivated and socially competitive do weights. I suspect you are trying to reverse causation by suggesting that doing weights will create motivated self-sufficient people. Cardio matters as you pass middle age. I know some people that do weights that are simply unfit - out of breath doing hill climbing. Anecdotally I see some physical and mental health from simpler regimes: some regular walking. Why are working people in London mostly not obese - using the tube which needs 10 to 15 minutes of walking must help. Especially so if mixing walking with social? "Four seconds of intense intervals, repeated until they amount to a minute of total exertion, led to rapid improvements in strength and fitness in middle-aged and older adults." - https://www.nytimes.com/2020/12/30/well/move/can-4-seconds-of-exercise-make-a-difference.html https://www.nytimes.com/2020/12/30/well/move/can-4-seconds-o... Ideally we need to look at which fitness interventions help someone who has an unhealthy lifestyle. But the selection problem remains: people that are motivated to change their lifestyles (whether weights training, walking, whatever) are a different subpopulation compared against the majority of people with bad lifestyles. Also I'm guessing you are responding as a <50yr old man to "Don’t exercise to be thin. Exercise to be strong." - the article appears to be by Annie Macmanus. I know two female body builders and neither exercises to be thin.