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Weather fluctuations seem to have ended giving way to scorching temperatures.
These temperatures are more unbearable especially for children and broken ages.
But high heat is extremely dangerous especially for people suffering from cardiovascular diseases.
How heat affects the body
The body temperature should be neither too hot nor too cold.
If the temperature rises significantly, the proteins that protect the body and are responsible for each of its processes cease to function.
The human body manages to cope with high heat in two ways which stress the heart.
Radiation
The heat in the body passes from the warm areas to the colder ones.
As long as the surrounding air is colder than the body, the body radiates heat into the air.
This radiation stops as soon as the air temperature approaches that of the body.
Radiation is a process that requires a more centralized blood circulation especially in the skin area.
This makes the heart beat faster and pump more blood.
On a hot day, the heart circulates two or four times more blood per minute than on a cool day.
evaporation
Every sweat molecule that evaporates from the skin takes with it excess heat.
On a day without moisture, the evaporation of sweat (an amount equivalent to a teaspoon) significantly cools all the blood.
But when the humidity rises to over 75%, evaporation of sweat becomes incredibly difficult.
Evaporation of sweat increases the pressure on the cardiovascular system.
Sweat gets more heat from the body, along with many minerals beneficial to nerves, muscles and fluid balances.
This forces the body to release more hormones which help the body retain more water and minimize mineral loss.
Shheart disease and Përballja me vApen
Healthy people manage to have a higher tolerance to temperature changes.
People who have heart problems have a more stressed body and consequently are hit harder by the heat.
The heart in people who have suffered a stroke finds it more difficult to pump enough blood to cope with the heat.
Blocked blood vessels as a result of cholesterol have a poor blood circulation to the skin.
Ischemia, Parkinson’s, Alzheimer’s, Diabetes and others negatively affect the brain’s response to dehydration.
Thus, the brain fails to send thirst signals and the body suffers the consequences.
How to fight the heat
Experts recommend that people who do physical activity do it early in the morning or late in the evening.
At peak heat, make sure you stay in an air-conditioned environment, take a bath, or apply cold compresses under your armpits.
AgroWeb.org advises you to make sure you drink water every hour on hot days.
Do not drink carbonated liquids, with sugar, alcohol or caffeine which worsen dehydration.AgroWeb.org
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