Due to the cognitive effects it has. There are peer reviewed studies that show a correlation between cannabis use and a decrease motor and cognitive function over time. It also stunts brain growth in people under the age of 25 since the brain is still growing until then. Also, cannabis is still federally illegal so universities usually abide by federal laws. Cannabis smoking also causes a distinct smell that sticks to things and second hand smoking is still a risk.
The upper respiratory system includes the nasal cavity (nose), the pharynx and larynx.
Explanation:
Air enters the body through the nose or mouth, this moistens and warms the air that enters since cold dry air will irritate the lungs. The air then travels down the voice box and down the windpipe.
A. Moderate. If he can carry on a conversation without running out of breath then he is probably not a stranger to that type of workout and is use to much harder tasks.