Answer :
Answer:
Nicotine
Explanation:
Nicotine is a dangerous and highly addictive chemical. It can cause an increase in blood pressure, heart rate, flow of blood to the heart and a narrowing of the arteries. Nicotine may also harden the arterial walls, which may lead to a heart attack. As well as cancer.
Chemicals I think or it could be addictive it sorta needs opinions