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safety1st11/08/20246 repliesview on HN

I think for the average person, looking too carefully at individual studies is failing to see the forest for the trees.

Basically any time we do a study which asks "Is doing a bit more exercise better for you?" the answer is yes. Like doing a single walk around the block every week is better than doing none. Even five minutes of exercise is better than zero. But obviously these have much less positive impact than several hours of moderate to intense exercise weekly. There are diminishing returns but they don't really kick in until you're already pretty fit, they are only really a concern that athletes need to think about.

So in terms of individual decision making things are really simple. Are you not fit? Do you feel bad? Are your basic markers for this looking bad (blood pressure, weight etc.)? Do more exercise. Do what you enjoy, do it safely, and do as much of it as you can as intensely as is reasonable, and the numbers will go in the right direction. This will put you way ahead of the average American in terms of fitness, it's not until a higher level that things really start to get technical.


Replies

kd5bjo11/08/2024

> There are diminishing returns but they don't really kick in until you're already pretty fit, they are only really a concern that athletes need to think about.

Unfortunately, it's people at both ends of the fitness curve that have to be careful about increased exercise frequency/intensity. On the less-fit side, the primary concern is accumulating minor injuries that reduce capacity for exercise even further leading into a downward spiral.

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f1shy11/08/2024

Not only what you say is objectively truth, it's motivating! Just start moving your ass!

Would only change "This will put you way ahead of the average American in terms of fitness, it's not until a higher level that things really start to get technical." striking out "American", just because it works everywhere.

mcdeltat11/08/2024

While it's true that doing any amount more exercise is beneficial to the average person, they may not necessarily know/feel it. As we so often see super fit people in the media, it's easy to think we need to do hours of exercise daily for any benefit. Easy to then think "what's the point? I'll never be super fit" and do nothing. Recinforcing the narrative (including publication of studies) that no, even a small amount of execise is quite beneficial, is encouraging for the average person.

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boomlinde11/09/2024

> There are diminishing returns but they don't really kick in until you're already pretty fit, they are only really a concern that athletes need to think about.

The paper suggest otherwise. Replacing ten minutes of your otherwise 11 hours of sedentary time with exercise will have less than twice the effect on blood pressure of replacing five minutes with exercise. That is diminishing returns.

sn911/09/2024

Yeah people just need to focus on doing the basics right [0].

[0] https://www.barbellmedicine.com/blog/where-should-my-priorit...

throawayonthe11/08/2024

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