Is there a limit to how much our bodies can adapt? For example, if you lifted weights and you lifted more and more, will there be a time when your muscles can't get stronger?

Edited November 11, 201312 yr by Endercreeper01

Is there a limit to how much our bodies can adapt? For example, if you lifted weights and you lifted more and more, will there be a time when your muscles can't get stronger?

Yes, there is a limit to how strong/fast/big a person can become. Otherwise, we would see people who could lift 10 tons, run 80 kmh, and weigh 100 tons.

When is the limit?

And what about the brain?

Edited November 12, 201312 yr by Endercreeper01

Limits depend on a wide variety of factors. An extreme example would be the bicep branchii limit in a quadriplegic is probably pretty low. . .

Is it the same for our brains?

If you're asking if the limit of our brains has too many variables to make an accurate prediction of its upper limit, then the answer is probably yes for some things and no for others. Upper limit to what? how many colors we can see? how many memories we can form? how many facts we can know? how many axonal connections can be formed? etc, etc, etc.

No, I mean if you keep practicing something, such as memory, will there be a limit to how much it will improve?

Yes

Whether you're talking about adaptations or acclimatizations (which are not hereditary) there's going to be some upper limit based on the amount of energy needed to grow and sustain life.