Question

why have long time smokers never been amongst long distance swimmers rowers or cyclists?​

Answer 1

Answer:

because due to oxygen depletion

Explanation:

In clear manner if I explain you then when people smoke then the tobacco dust is accumulated in the lungs due to which the capacity to breathe decreases and hence they are never amongst long distance swimmers and cyclists

Answer 2

Long time smokers never been amongst long distance swimmers, rowers or cyclists due to lack of endurance (endurance limit).

Explanation:

If you smoke, your endurance limit decreases as your intake. More intake of cigarettes and for long time leads to decrease of endurance. So, for swimmers, rowers or cyclists smoking is strictly prohibited.

Through smoking tar is collected inside the lungs which is black in colour and leads to reduction in breathing capacity (oxygen intake capacity) which directly reduces the endurance of a person. Smoking burns the lungs from inside by decaying it due to the presence of tar.