In my entire personal network, I think I know only 1 person who actually lifts weights. Why is this? I wonder (1) what percentage of my friends regularly work out and don't talk about it and (2) what percentage of these people lift weights versus doing other stuff. 

I imagine it's (1) 50% and (2) 5-10%.

Founder of venture DAO Chainforest (www.chainforest.xyz). Also treasury Co-Lead @ FWB. Liftcaster. Fashioncaster. Dadcaster. NYCaster. NBA Caster.

it's sad because barbell strength training is the single most effective thing most people can do to improve their health

that and cutting sugar

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building /daimo ✳️ 

Is it better than cardio? Running / swimming / cycling?

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yes

strength training is also cardio--during sessions, your heart rate is high

and it has more permanent advantages. for example, cardio burns calories once. building strength burns calories forever--your resting metabolic rate goes up with your muscle mass

still good to do both

from an all-cause mortality perspective, 2 hrs of cardio + 1 hr of weightlifting per week is the sweet spot for maximizing roi on time spent exercising based on a few longitudinal studies