system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Is it true that the human body's strength, and use of muscle is limited by the brain to avoid self harm? If so, how strong could one be without that limit?

My dad told me that a while ago and when I decided to look into it several years later, I couldn't really find anything.
gpt
Your jaws could technically crush your own teeth with their strength but it is limited by the brain. Adrenalin and stress play a part in your strength , resulting in mothers lifting cars to save their babies or two young female adults lifting a tractor which had fell on their Dad with their bare hands (they were bedridden by the effort for a day tho).