A heart attack is a situation when oxygen supply is totally cut off to the heart.
Heart attack is also known as myocardial infarction.
Pain in the upper body, sudden dizziness, Increased heart rate, cold sweating, continuous cold and fever are some of the identified symptoms of a heart attack.
Symptoms
Some people may feel sudden pain in the chest before a heart attack whereas some people do not have pain rather anxiety.
Research suggests that second hand smoke may lead to heart attack.
It is necessary to have 7 to 8 hours of resting hours or sleep cycles for a healthy heart.