Respuesta :
Smoking can lead to build up of tar in the respiratory system and carcinogens in the blood. The carcinogens can cause blockages as well as constriction of arteries and veins.
Answer: Smoking
Explanation:
Smoking is very injurious to health as it causes cardiovascular disorders. The blood vessels is coated with a thin Teflon like layer of cells which helps in the smooth flow of the blood in the blood vessels.
The carbon monoxide released by smoking damages this layer of Teflon which allows the plaque and fats to stick to the walls of blood vessels. This causes constriction in the blood flow and leads to cardiovascular diseases.
