Heart attack is a pathology characterized by the death of a portion of the muscle or part of the muscle of the affected organ that occurs when an artery is completely blocked. In the circumstances in which the obstruction occurs, blood supply is suppressed. If the muscle lacks oxygen for too long, tissue in that area dies and does not regenerate.
This pathology is manifested when people reach middle age and affects both men and women. In women, the disease manifests itself about ten years later than in men, so the myth that women are not affected is a lie. This is because the hormonal status of menstruating women makes them more protected against the risk of having a heart attack.
This was written by a professor of medicine at the UiTM in Malaysia who advises that people should not start by getting their head and hair wet when showering because this is a reverse sequence. This causes the body to try to adjust its temperature very quickly because of our "warm blood"condition. By making this sequence incorrect, the blood increases its speed to reach the head more quickly to compensate for the temperature difference, which can eventually cause ruptured capillaries and arteries and consequently a heart attack falls. The correct way to start the shower is to begin by gradually wetting your body from your feet to your shoulders. Some people who do this say they feel a kind of drowsiness or steam coming out of the top of their head or a bursting of body hair.
REFERENCE: http://www.cuidateplus.com/enfermedades/enfermedades-vasculares-y-del-corazon/infarto-miocardio.html