When tobacco enters the body, it reduce lung functions, making it hard to breathe. This is due to the respiratory system swelling up, narrowing the passageway/airway. It also causes an increase in poisonous subtances, which irratiates the lungs, damaging it. When tobacco enter your system it also causes a decrease of blood ciruclating through your body that is needed in order to carry oxygen. Another effect it could have on the cardiovascular system is it could increase cholestersol levels, increasing chances of heart diease.
The effects of tobacco smoke on the respiratory system include: irritation of the trachea (windpipe) and larynx (voice box) reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages.
Explanation: hope i could help and i hope you have a really good day :)
