What is a heart attack? Detailed answer

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What is a heart attack? Detailed answer

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What is a heart attack?

What is called a heart attack (heart attack) is one of the most common causes of death in the Western world. In three cases out of four, the victim is a male, usually between fifty and seventy years of age. A typical heart attack is caused by coronary thrombosis. Many call it simply thrombosis.

This disease begins in the coronary arteries, two blood vessels that supply the heart with blood. When one of these arteries becomes blocked, the blood supply to part of the heart is cut off. Part of the tissue in this part of the heart begins to degenerate and die, as if it had been injured. When one coronary artery becomes blocked, small branches of another artery take over its tasks for a while. After some time, most of the parts of the heart cut off from the blood supply receive the blood they need.

If the second artery is able to do the work for two, then the person remains alive. Fortunately, in most cases, the second artery is able to do this job, helping the heart cope with stress during this period of time.

For many, a heart attack begins after increased physical exertion, nervous breakdown, extreme cold, excess food - in all cases when the heart has to work harder than usual. All this is not always the cause of a heart attack, but there is still a relationship.

However, in many cases, a heart attack can occur when a person is in a calm state. Symptoms of a heart attack usually include chest pain. But pain can also be felt in the arms, neck, or left shoulder. There is sweating and shortness of breath. The victim of an attack may turn pale and be in shock, and the pulse may become very weak. When these symptoms appear, you should call a doctor.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What do wasps eat?

Almost all insects have curious ways of rearing their offspring, but few of them show such skill in this matter as wasps. Some wasps build little mud houses for their babies. Others make paper nests. Some dig holes in the ground, and some wasps gnaw holes in a tree. When the house is built, the mother wasp goes out in search of food in order to create supplies in the house.

Hungry wasps are very picky eaters, some only eat spiders, some beetles, others flies, and many wasps eat nothing but live food.

Females of each species travel long distances in search of the right insects. They then seize them with their strong jaws and gently insert a venomous stinger into the nerve centers of the insects. This poison does not kill, but only completely paralyzes the insect, and therefore its meat is kept fresh until the young wasps want to taste it.

Wasps belong to the same group of Hymenoptera as bees and ants. Their diverse species are divided into two groups. Some of them come together to build housing and provide food for their offspring. Single wasps exist on their own. These two groups differ in the position of the wings: collectivist wasps spread their wings like a fan, while solitary wasps lay them on their backs.

All wasps look alike. They have four transparent wings and three pairs of legs. Females have long thin stingers at the back of the body. Their mouths are adapted for both chewing and sucking, as wasps feed on fruit juices or other insects. Some wasps feed exclusively on honey.

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