Why is damaging your large muscles (exercising) beneficial but damaging minuscule ones (straining eyes) detrimental?

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Why is damaging your large muscles (exercising) beneficial but damaging minuscule ones (straining eyes) detrimental?

In: Biology

Well to start damaging your large muscles isn’t always beneficial.

Exercising is a very specific kind of straining that only minor damages the muscle allowing it to repair itself to grow stronger.

If you significantly damage a muscle, by say working too hard and tearing it, that is a very very long recovery to try to get that muscle back healthy again.

So both large and small muscles can be worked in these same safe and unsafe ways. It just May be easier to overwork smaller muscles because they have less capacity.

But also, straining muscles again is not like working out muscles.

When you work out, you work the muscle for typically a shorter, intense period of time, then give those muscles time to recover.

Something like eye strain occurs when you’ve gone many many many hours without allowing those muscles any time to rest or recover at all. (Eye strain is also a bit more complicated because the things that control your sight also aren’t muscles, but nerves in your eyes, so the damage to them that can make your eyesight worse is a totally different story.)

When you overuse a muscle it can get damaged. If you over use it a whole lot, it takes longer to heal. If you overuse it again before its done healing, it can’t heal.If it has time to heal, it might get stronger, because the damage told the body that muscle needs to be stronger, but if it never gets time to heal, it just hurts all the time, and doesn’t get stronger.

A “strain” is never beneficial to a muscle and all muscles need exercise. It’s mostly just a matter of what you notice. You might not know one of those little muscles is even there till it’s strained or has some other problem. The exercise you get for them is normal daily use.