<span>According
to the SAID principle, if the demands placed upon a muscle cause it to
become stressed, then there exists a chance that the muscle will weaken.
-False
</span>
Ibuprofen should help and lots of water.
No u shouldn't leave it open.
It can be really dangerous.
For example: It might sound crazy but imagine a rodent eating the hose that the gas passes through,the gas leaks and dangerous things can happen cuz propane is flammable especially when mixed with air(oxygen).
The younger man simply due to his age and that causing a higher metabolism thus increasing the metabolic rate.