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 (vessels that carry blood). Nicotine may also contribute to the hardening of the arterial walls, which in turn, may lead to a heart attack.
The lower group suffers the most due to having little medical treatment because the people of lower groups don't have enough money to provide themselves with the best treatment.
Number of people on the heat monitor is normally do to the patient either having a heart attack or having had a heart attack in the past do to heat problems of stress.
