ELI5- Do muscles grow and physically appear during a workout or do the effects take place in the time afterwards?

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I’ve wondered this for so long but don’t know how to articulate it well and also feel like it’s potentially a very dumb question but thought this would be a good place to ask it.

Essentially- while I’m working out, are the muscles building themselves during that time or is it a situation where you’d be able to see the effects afterwards like in the coming days? I hope that makes sense.

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7 Answers

Anonymous 0 Comments

You’re actually gaining a pound or so of muscle mass every day, unfortunately you’re losing about the same amount as well.

So on a typical day you get +100 muscle, and also -100 muscle, meaning you’re +- 0. Diet and exercise can change these values, so by regularly exercising you might get +103 and -100 every day, meaning you gain +3. This is a slow process, you do get +3 every day, but it might take a total of 200 before there’s a visible difference.

The more muscle mass you have, the more you’ll also lose, so after a while, while still exercising regularly you’ll reach a point where you get +103 and -103 every day, and you’ll have to make your workout harder somehow in order to grow further.

My numbers are of course completely made up, but the point is that it’s a constant tug of war, 24/7.

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