In bangladesh hot weather risk factors

Risks from hot weather include:



1.Dehydration
2.Burning of the skin
3.Heat stroke

This is the loss of water from the body, and with it important blood salts like potassium and sodium which play a vital role in the function of organs such as the kidneys, brain and heart.
It can lead to confusion, lethargy and problems with breathing and heart rate. Production of urine and sweat decreases to conserve fluid.
Under normal circumstances the sweat we produce when we get hot keeps us cool when it evaporates from the surface of our skin. However, on extremely hot days, when we become dehydrated, or when we over-exert ourselves, this system can fail, and body temperature can start to climb to dangerous levels. This leads to heat stroke or exhaustion. This can cause headaches, dizziness and muscle cramps, but it can also be life-threatening.

Symptoms..........

Your body is affected by the temperature of the environment around you, resulting in the following as it rises:
Ambient temp: 20 ° C (68F) Comfortable. Heart rate normal.
25 ° C (77F) Light sweating.
30 ° C (86F) Discomfort: Blood cools at skin surface. Concentration affected. Moderate sweating.
38-41 ° C (104F) Heat exhaustion: Heavy sweating. Rapid heart rate. Tiredness. Nausea.
45 ° C (113F) Heat stroke: Sweating stops. Hot, dry skin. Core temperature rises. Fainting. Danger of organ damage and death.

How you can Treatment and prevention......

**Drink lots of liquids: As you will be losing more fluid than normal, it's important to top up your supplies. The best way to keep yourself hydrated is to drink water, and to sip it, rather than gulp it down.
On an average day, a person weighing 58kg (128lb) should drink eight average-sized glasses of water. As a general rule, for every 2lbs (0.9kg) of body weight, you need one fluid ounce (28.4ml) of water. In very hot weather, consumption should be increased.

**Modify your diet: Avoid hot, heavy food. Eat cold foods, particularly salads and fruit with a high water content. Salt pills are available to replace minerals lost in the sweat. However, most diets contain more than enough salt, and so this is unlikely to be necessary.

**Stay out of the sun: The best place to be on a blistering day is in the shade. If you must sunbathe, then ensure that it's for short periods, and that you use sunscreen with a protection factor of at least 20. If you start to feel queasy or ill then get out of direct sunlight as quickly as possible. The sun is at its most dangerous between 11am and 3pm.

**Take special care of the vulnerable: Those most at risk from the sun include children under four, people over 65 whose bodies adapt more slowly to the change in temperature, overweight people whose bodies tend to retain heat more and people who are ill.

Babies are particularly vulnerable to heat as their sweat glands are not well-developed and they are less able to control their temperature.

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