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From frost to heat: what is the danger of a sharp temperature drop
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From frost to heat: what is the danger of a sharp temperature drop

Facial redness
As is known from physics, in the cold, the vessels narrow and in the heat, on the contrary, expand. Thisexplains the redness of the skin. Blush all over the cheek that appears after frost, it seems, should not upset us. Worse, when the nose turns red – it is ugly, but not only. The fact is that such sharp jumps in temperature are a risk factor for rosacea – a disease associated with loss of elasticity in capillaries. As a result of this, microcirculation is disturbed, the nutrition of the skin is deteriorating, the networks of blood vessels, asterisks appear on it.

Nose snot
Such a flow from the nose represents the protection of the body from microbes and the restoration of the normal functioning of this organ. Our nasal cavity is usually wet, covered with mucus, which collects dust and pathogenic microbes, without passing them into the body. Then all this dirt is removed by cilia, which constantly oscillate in the direction of exit from the nose. At low temperatures, the vessels in the nose narrow, the mucous membrane of the nose dries up, the movement of the cilia slows down. In the warmth, the vessels expand, a secret is produced (those same snot), which moisturizes the mucous membrane and removes “debris” from the nose – after all, in the cold, the nose cleaning system worked half-heartedly. Usually snot stops after 10-15 minutes.

Breathing failure
Coming out in a severe frost from a warm room, you can feel how breathtaking. Sometimes a person is simply not able to take a breath. So manifests bronchospasm or laryngospasm – a sharp narrowing of the airways. This condition is especially dangerous for patients with bronchial asthma, although a healthy person may experience quite unpleasant sensations.

Sore throat
It occurs due to the drying of the mucous membrane and, as a result, its irritation, which is caused by the narrowing of blood vessels under the influence of frost. Especially strong tickling is felt after a long stay on the street.

Blood pressure jump
When the heat comes out of the frost, the vessels are compressed – their spasm occurs. This leads to a sharp increase in pressure. And if a healthy person suffers such a jump painlessly, then it can be dangerous for hypertensive patients. Those who suffer from cardiovascular diseases run the risk of getting an angina attack.

Dizziness
This condition is also associated with the vessels, more precisely, with their sharp narrowing and expansion. There is a vasospasm, less oxygen enters the brain, dizziness, darkening in the eyes, and even fainting occur. The likelihood of dizziness increases when the temperature difference is too large.

How to prevent the dangerous effects of contrasting temperatures?
To protect your skin in cold weather, before you leave home, use a special protective cream.

To stop perspiration, or at least to alleviate this condition will help pastilles or mint candies.

Before you go out into the cold, go into a warm apartment, wait a little at the entrance, so that the temperature difference is not so sharp.

Coming from the street, sit quietly for 10-15 minutes – let the body rebuild to heat. If you are very dizzy, it is better to lie down.

People suffering from diseases of the heart and blood vessels, bronchopulmonary pathologies, it is recommended that, if possible, in severe frosts, do not go outside. If this is not possible, then it is necessary to at least reduce the stay in the cold to a minimum.

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