Founders

1.5 years into being a founder: my biggest surprise has been the physical toll. Any others go through the same journey?

6 hours in a desk chair, 8 hours laying down on my couch, 14 hour work days.

Trying to fix that now! But it’s like starting at square one. If I run 3 miles I’m wiped.

why? nothing better than a long zone2 run to increase VO2max.
lifting is more anaerobic than aerobic.

for a founder trying to maintain baseline, i think simple strength-oriented workouts are more sustainable. in my experience, high volume running cycles through calories at a much higher rate, creating new problems around healthy fueling and hormone balance over time. easy to get this wrong which is why its common to see so many "skinny fat" flabby runners (and cyclists)

I agree it could be more sustainable (even if I found running more appealing to me when I was at my first startup, cleared my mind and the best ideas I had while running).
but in that specific parameter, if the goal is to increase VO2max, and not cutting your body, aerobic training works better then lifting.

Yeah I think my goal is to stop feeling so generally weak. VO2 max is a function of lack of movement and stamina across the board.

Goal is to rebuild a lot of muscle everywhere and cut body fat so I can take running seriously again.

my unsolicited advice: start small and be consistent. get a 16kg, 24kg, and 32kg kettle bell. keep them by your desk. do 1 set of ~10 reps of whatever exercise you enjoy (getup, swing, press, squat, lunge, etc). gradually add reps, sets, weight, and additional exercises slowly over time. you should feel energized after the workout. if you're tired, you did too much. gradually increase caloric intake and sleep with workout effort. you can go from weak and low aerobic capacity to strong and high aerobic capacity in a few months. spent years doing v high volume weekly runs, marathons, and ultras. strongly advise against running if your goal is to be generally fit and healthy

per op, i dont think the goal is to increase vo2, but to simply be healthy while grinding in the trenches. metric optimization has many pitfalls, overall health and well-being is one of them