The principle of overload uses the fitt variables to accomplish overload. the acronym fitt stands for: fitness, interval, time, type frequency, interval, time, talent frequency, intensity, time, type fitness, interval, taking part, time

Having a knowledge on F.I.T.T principle can help one to have a workout plan that can make the fitness goal to be effective. It means F for frequency, I for intensity, T for time and T for type. Frequency means how one usually does the exercise routine, Intensity is how hard one does during a workout, Time is for how long does it usually take for one to have an exercise in every session and lastly Type is the kind of exercise one does to avoid any injuries.

Keeps you from getting lung cancer from smoking

Olfactory epithelium i believe