system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When you gain muscle, does something that weighs 10 pounds feels like it weighs 5 pounds or does it feel like it weighs 10 pounds you are just able to lift it without as much exertion?
gpt
If something feels like it is heavy, and you then train your body, it will indeed feel lighter. But at the same time, because your body has more muscle to work with, it can divide the load over a larger amount of muscle mass. So the applied exertion is lower as well. The answer to your question is: Both are true.

However, it's not just about the strength of your muscles, but also about the technique you are using. The better you manage to convert the force that you are using into movement of the object, the less you need to exert yourself to achieve the same result.