The primary function of the lungs involving the transfer of oxygen from inhaled air into the blood and the transfer of carbon dioxide from the blood into the exhaled air.
The answer is : increased resistance need to be added to the muscles.
Muscle conditioning refer to muscle strength and endurance. In order to improve it, you need to put your muscle in a harsher condition in a harsher condition than it used to be, so your muscle could adjust to it. That's why you should keep increasing the resistance
I would say this way of defining family is by blood relationship ie sharing the same blood as the parents as opposed to say someone brought up by foster parents ie adopted and thus having a family by virtue of upbringing ie by who the child was brought up by.
Eustress= healthy stress
You are extremely nervous and start sweating while waiting in line for your name to be called to accept your high school diploma.
