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Comment by lostmsu | Hacker News Reader

At this rate you get more lifespan not exercising. 10h a week out of your waking time is about 9%. No way your heart health gonna give you that much.

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The joke is that jogging will add years to your life, but you'll have spent those years jogging.

Lifespan != healthspan

I don't know... If you're actually exercising an hour and a half each day, every day, you're going to be incurring some pretty regular exercise related injuries and degeneration. Your heart might like all that running, but your knees are going to make you regret it.

The knees need exercise to be well. Nutrients are passed into meniscus etc by pressure cycling.

Running is not the only form of exercise. There are plenty of low impact forms of exercise out there that can get you into any zone of cardio you want.

Nowadays exercising might mean walk at decent pace. People acts like they are asking you to run 90 minutes daily at marathon record pace, when they are actually saying to walk briskly for trips less than a mile, or take the stairs instead of the elevator.

Only a few people take benefit from running heavier than 5 km (3 miles) in 30 minutes every other day. The rest of you exercise should come from anything that is not driving or browsing the web.

> If you're actually exercising an hour and a half each day, every day, you're going to be incurring some pretty regular exercise related injuries and degeneration

The human body evolved for that, and much more, you're not training 90 min per day at athlete level performance, you'll be fine... Of course if you run 10 hours per week with bad technique you're going to fuck your shit up, but you can easily alternate 60 min of gym/cardio every day with very little chance of injuries + an evening 30min "brisk" walk or 30 min of bicycle commute.

It's your body, do as you want, but chances are you exercise (way) too little, not too much

> The human body evolved for that, and much more

This is questionable past the median age that humans had on evolutionary scale.

Not questionable at all, we're made to stand up and walk/run, quite literally. We certainly did not evolve to sit 10+ hours a day

https://www.ucdavis.edu/blog/humans-are-born-run

https://www.kpax.com/news/a-wilder-view/a-wilder-view-why-hu...

None of these address the age bit.

So do an exercise that you actually enjoy and want to be doing.

I play pickleball 10h a week and absolutely love the time spent playing. So there is no wasted time here. I spend all my exercise time doing something fun that I love doing, and it improves my health outcomes at the same time.

Heart health isn't the only mechanism by which exercise could affect mortality.

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