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For children and pets, one way for heat stroke to happen suddenly and unexpectedly involves a hot car or a hot room in a house. Cars are especially dangerous. We did the following experiment for this:
We turned on the air conditioner in a car at 3:30 p.m. on a sunny, hot summer afternoon in Raleigh, NC.
We waited until the interior of the car cooled to a comfortable 75 degrees F.
We turned the engine off.
Within 15 minutes, the interior temperature of the car was 110 degrees F. This temperature is quickly fatal.
The reason the temperature rises so high and so fast is because the interior of a car is an excellent solar oven that uses the greenhouse effect to trap heat. Sunlight heats the sheet metal of the car, and it streams in through the windows to heat the interior. It turns out that glass is completely transparent to visible light but opaque to infrared light -- and infrared light is the heat that is trying to radiate back out of the interior. So the temperature rises rapidly, to the point where you often cannot touch the steering wheel without getting singed. Leaving the window cracked is not going to help -- it is never safe to leave a child or pet in a parked car for any length of time.
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In either case -- be it the lack of sweat or the inability to evaporate it -- the core body temperature can rise very quickly if it is hot outside. Once the core gets to 106 degrees F, it is a serious problem. Symptoms include red, hot, dry skin (the body dilates skin blood vessels to try to release heat, making the skin red, and the dryness comes from lack of sweat), rapid heart rate, dizziness and confusion. The dizziness and confusion come from the high body temperature, which affects the brain.
Age: 124
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HEAT STROKE .... With summer temperatures reaching 100 degrees Fahrenheit (38 degrees Celsius) in many cities, heat stroke is becoming a big problem. Heat stroke can be fatal in many cases because it happens so quickly -- there is not much time to react.
Let's say that it really is 100 degrees F outside. The human body wants to stay at 98.6 degrees F. The only way to stay at 98.6 is to sweat. By putting moisture on the skin and letting it evaporate, your body can cool itself very effectively and keep its temperature in the proper range.
Sweat works really well as long as there is plenty of water in your body -- it takes water to manufacture sweat. If you run out of water, sweat stops and your body rapidly overheats. It turns out that it is extremely easy to run out of water -- your body can produce 0.5 gallons (2 liters) of sweat every hour in a hot environment. Unless you are drinking water at the same rate, you will dehydrate and then stop sweating. Your internal thirst meter often is not sensitive enough when you need that much water (and it has been said that by the time you feel thirsty, you're already dehydrated), so you have to keep drinking regardless of how thirsty you feel.
The other thing that can lead to heat stroke is very high humidity, which keeps sweat from evaporating.
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BLOOD PRESSURE .... Your heart is an amazing pump. It works reliably for decades, and it safely pumps blood - one of the trickiest liquids around. In the same way, your blood vessels are pipes. They take the output from the pump and distribute it throughout the body. A blood pressure gauge is simply a way to measure the performance of the pump and the pipes.
Each time your nurse or physician "takes" your blood pressure, they are recording two measurements: your systolic pressure and your diastolic pressure. If the two measurements were 110 and 70, they would be written as "110/70". Your physician or nurse will describe your blood pressure as "one-ten over seventy".
Your systolic pressure (the first and highest number) is the pressure or force the heart places on the walls of your blood vessels as it is working/pumping with each heartbeat.
Diastolic pressure (the second and lowest number) is the lowest pressure the blood places on the walls of your blood vessels when the heart is relaxed between beats.
Both of these measurements are important. A high systolic pressure indicates strain on the blood vessels when the heart is attempting to pump blood into your bloodstream. If your diastolic pressure is high, it means that your blood vessels have little chance to relax between heartbeats.
Occasional high blood pressure is common. Anxiety, exercise, or nervousness can cause you to have a high reading (seeing a nurse or physician for the first time can cause this response). Untreated sustained high blood pressure can increase your risk of premature strokes and heart attacks. If your blood pressure is 140/90* or higher, you will be asked to return for a recheck at your earliest convenience. If your blood pressure remains high, you will be referred to a physician for treatment.
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TT do u have any other problem i mean wid ur sleep,stomach etc or any type of weakness? and do u want to take the homoeopathic medicines for ur this problem?
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Finally, the Rh factor is important for pregnant women. If an Rh+ man and an Rh- woman have a child, the child can be Rh+ or Rh-, depending upon the genotype of the father. If the baby is Rh+, this can cause problems. While in the womb, some blood cells from the baby will cross the placenta into the mother's blood stream. The mother will make antibodies to the Rh+ cells. If the woman becomes pregnant again and if the baby is Rh+, the mother's anti-Rh antibodies will cross into the baby's blood and destroy its red blood cells, which can kill the baby. If diagnosed early, it is possible to save a baby under these circumstances by replacing the baby's blood with transfusions that are free of the Rh antibodies. Also, if this situation is known, it is possible to treat a Rh- woman with anti-Rh antibodies (RhoGam) immediately after childbirth to inactivate the baby's Rh+ cells and prevent the mother from forming anti-Rh antibodies (desensitize her).
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Blood types are important for giving blood from one person to another (transfusion). The blood types must be matched. If not matched properly, the recipient will form clumps (clots) in response to the donor's blood. The clots will lead to heart attacks, embolisms and strokes (transfusion reactions). Two blood types are special:
Type O- is called the universal donor because it can be given to anybody; it has no protein to cause clumps. ..
Type AB+ is the universal receiver because the recipient has all of the proteins and so will not form clumps.
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So, your blood type does not necessarily tell you exactly which alleles you have. For example, a person with blood type A could have either two iA alleles or one iA allele and one i allele. It is possible for two parents with the same blood type (A or B) to have a child with type O blood. Both parents would have to have a mixed genotype, such as one i allele together with either one iA or one iB allele.
Blood types are determined by placing three drops of blood on a glass microscope slide. To one drop of blood, a drop of antibody solution to protein A (anti-A) is added. To the second drop, a drop of antibody solution to protein B is added. To the third drop, a drop of antibody solution to Rh factor (anti-Rh) is added. The blood drops and antibody drops are mixed and examined for clumps of red blood cells, and the blood type is determined. Clumps mean that the particular protein (A, B, Rh) is present. For example, clumps in anti-A and anti-Rh, but not anti-B, would indicate a person with type A+ blood.
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BLOOD GROUPS / TYPES ....
A blood group or blood type is based on the presence or absence of two proteins (A, B) on the surface of red blood cells. Because two proteins are involved, there are four possible combinations or blood types (ABO groups): Type A - Only the A protein is present.
Type B - Only the B protein is present.
Type AB - Both proteins are present.
Type O - Neither protein is present (about 40 percent of the population).
In addition to the A and B proteins, there is another protein involved called the Rh factor (Rh for Rhesus monkey, where it was first identified). The Rh factor is either present (+) or absent (-). Therefore, blood types are described as the type and Rh factor (such as O+ , A+, AB-).
There are three forms of the gene (alleles) that control the ABO blood group, which are designated as iA, i B, and i. You have two alleles (one from your mother and one from your father), which are referred to as your genotype. The inheritance of the alleles is co-dominant, meaning that if the allele is present, it gets expressed. (See How Gene Pools Work for more information.) The following genotypes will yield these blood types:
iAiA or iAi - Both genotypes produce the A protein (type A).
iBiB or iBi - Both genotypes produce the B protein (type B).
iAiB - This genotype produces the A and B protein (type AB).