Factors That Increase the Risk of Heart Attack

Factors That Increase  the Risk of Heart Attack

Heart attack also known as myocardial infarction is a critical health condition that results from the blockage of the heart’s coronary arteries. The blockage of blood vessels can occur in any part of the body. It, however, becomes critical if it affects a major body organ. The blockage can be due to blood clots and other deposits that such as cholesterol/plague.

Such a blockage limits the flow of blood to the heart muscles resulting in death of tissues. There are three types of heart attack: non-ST segment elevation myocardial infarction (NSTEMI), ST segment elevation myocardial infarction (STEMI) and coronary spasm, or unstable angina. STEMI and NSTEMI are major heart attacks.

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First Aid Tips to Treat Eyes Injuries

First Aid Tips to Treat Eyes Injuries

The eye is a special body organ made up of different components that work together to provide vision. The eye has a outer layer called the white layer or sclera. The white layer is relatively tough for protection. The sclera is covered by another thin transparent membrane known as conjunctiva. The membrane also covers the moist part of the eye lids and eyeball.

The cornea is the clear layer covering the pupil and iris, and it allows light into the eye. The cornea also protects the eye while at the same time focusing light at the back of the eye (retina). The pupil is the black spot in the middle of the eye through which light travels into the eye. The iris surrounds the pupil and it controls the amount of light that goes through the eye. It does so by adjusting the size of the eye. In bright environment, the pupil iris contracts/constricts to limit the light entering the eye. In dark environment the iris will expand to allow more light into the pupil. These functions are performed by the dilator and sphincter muscle of the eye.

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