Which quantity is held constant when working with boyle’s, charles’s, and gay-lussac’s laws?

These laws are the most commonly known gas laws. Each law has it's own assumption but all of them assumes a constant amount of a particle in terms of moles. Boyle's law is about having constant temperature. Charle's law is on constant pressure and Gay-Lussac's Law is on constant volume.

He will get sick right away , he will have low energy , he will loose all his nutrition