- Dehydration contributes to sunstroke. Dehydration happens when your body excretes more water than it takes in. For example, increased water loss through excessive urination is a common side effect of caffeine, alcohol, and many prescription and over-the-counter medications. When the water supply in your body is low, cells begin to pull water from the bloodstream, forcing organs to work harder. Dehydration can also affect the skin's ability to cool the body efficiently. The heart must pump an adequate supply of blood to the skin in order for the skin to cool the body. When you are dehydrated, the blood's volume is reduced, so the cooling process becomes less effective. The taxing effect on the body escalates into the symptoms of heat-related illness.
- Prolonged exposure to the sun contributes to sunstroke. When body fluids are not adequately replenished, sun exposure can cause rapid dehydration. Even on mild or overcast days, the sun can have dangerous health effects. The heat index is a measure calculated by the National Weather Service. It indicates how hot it "feels" outside in the shade when both the air temperature and the relative humidity are considered. In the direct sun, the heat index rises even higher.
- Very old or very young age.
- Low level of physical activity.
- High blood pressure.
- Diseases of the skin, kidney, or liver.
- Decreased ability to sweat, such as in scleroderma and cystic fibrosis.
- Medications that can aggravate sunstroke, including water pills (diuretics), allergy pills (antihistamines), tranquilizers, anticholinergics, and amphetamines.
- Heavy, restrictive clothing.
- Poor ventilation or lack of air conditioning in home.
- High humidity.
- Red, dry, very hot skin (sweating has ceased).
- Pulse-strong & rapid.
- Small pupils.
- Very high fever.
- May become extremely disoriented.
- Unconsciousness and possible convulsions.
- Hydrate well before thirst kicks in. Once you are thirsty you are already dehydrated.
- Do not exercise vigorously during the hottest time of day. Try to train closer to sunrise or sunset.
- Wear light, loose clothing, such as cotton, so sweat can evaporate. Better yet, invest in some clothes that wick, like Cool-Max.
- Use sunscreen to prevent sunburn, which can hinder the skin's ability to cool itself.
- Wear a hat that provides shade and allows ventilation.
- Drink plenty of liquids such as, water or sports drink every 15 minutes (drink 16-20 oz/hour).
- If you feel your abilities start to diminish, stop activity and try to cool off.
- Do not drink alcohol or beverages with caffeine before exercise because they increase the rate of dehydration.
- Remember, it is easier to prevent heat illness than to treat it once symptoms develop.
According to a recent study, published in The Journal of Physiology, exercising four to five times per week may help stop the main arteries to the heart from stiffening up. The researchers from the US have found that those who exercise four to five times per week had...
A new study from Brazil suggests that trendy intermittent fasting may be the reason for increasing insulin levels and the amount of abdominal fat. It also may lead to the damage of pancreatic cells. Intermittent fasting diet is a diet when a dieting person has “fast”...
Quiz about this article
0 of 2 questions completed
Please answer on few questions to make our service more useful
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
0 of 2 questions answered correctly
Time has elapsed
You have reached 0 of 0 points, (0)
Question 1 of 2
Was this article useful for you?Correct
Thanks for your feedback!Incorrect
Thanks for your feedback!
Question 2 of 2
What else information about this disease you want to know ?Correct
Thanks for feedback!Incorrect
Thanks for feedback!
Good weather is the best reason to do outdoor sports, which will help not only lose weight, but also will strengthen health. Bicycle The sun dries out the local paths, so you can safely sit on your favorite bike and confidently twist the pedals, where the eyes look....read more
First aid for injuries consists of simple rules that need to be clearly implemented. If this is a closed injury, you need to immobilize the injured limb, otherwise the person may lose consciousness from a painful shock. If you need to get to the emergency room...read more
Many people spontaneously decide starting to do sport, while others weigh all the pros and cons for a log time. But almost all of them make the same mistakes, listening to the advice of non experts. There are 10 anti-tips for those who want to do plan to do some sport...read more