what do you mean 'sunstroke'? what effect of human ,s?
825432
Sunstroke (heat stroke) occurs when the body's ability to regulate its temperature stops working. This usually happens when someone with an already weakened ability to dissipate heat, such as an older individual or a child, plays outside in the heat for a prolonged period of time, but can also occur to normal healthy adults that don't take proper precautions. Drink plenty of fluids, and get out of the sun if you start to feel faint, stop sweating, get dizzy, or become confused (or a few dozen others.) If your symptoms get worse or don't promptly resolve, contact your physician or call 911.
1161684
Well, it depends on which organisms you are looking at. First of all, light/the sun is absolutely essential for all life on the planet, as the sun provides the energy for photosynthesis to take place, which allows the production of glucose. This glucose is then transmitted to consumers who eat the plants.\n\nin terms of humans, light/sunlight is actually pretty essential for the production of vitamin D, because radiation from the sun actually causes skin cells to produce Vitamin D. A deficiency in this vitamin can cause rickets or osteoporosis. So, basically sunlight is important for humans for normal bone growth. Also, the light also affects how light/dark one is, because of tanning. Tanning/darkening of the skin occurs when the body creates more melanin to protect the body.
1089406
That's becuase it will enhance the effects of the sun. You will burn faster.
3658
I know friends that get tan or sunburn when they go skiing on a sunny day.... perhaps you are looking for a more complex answer.
305902
Short-term exposure causes depression of the central nervous system (CNS), marked by drowsiness, dizziness, headache, nausea, loss of coordination, confusion and unconsciousness. No effects are expected at 25 ppm. Exposure to 50 to 150 ppm produces headache, and tiredness. Nose and throat irritation have also been reported following short-term exposure. A period of feeling excited or giddy may precede the onset of other symptoms. Exposure to approximately 20,000 ppm for 5 to 10 minutes may result in death. In general, blood and immune system effects have not been documented in humans following short-term exposures, although these effects have been seen in animals.\n\nBenzene is also an irritant when in contact with skin.
493620
Spontaneous human combustion (SHC) is the alleged process of a human body catching fire as a result of heat generated by internal chemical or nuclear action. While no one has ever witnessed SHC, several deaths involving fire have been attributed to SHC by investigators and storytellers
483899
You should feel better the next day if you hydrated yourself and got some rest, but it may last a few more days, heatstroke can real drain your body, besure to take care of yourself and don't push it. Take it easy if you still dont feel good. Keep drinking plenty of soft drinks...
871261
Exposure to sun is important for people because it triggers the production of vitamin D, necesary in the absotion and balance of calcium (which is basic for life). Black people in poorly lit places (say finland...) have calcium problems. \nThe amount of energy necesary for this, however is not big. The problem with sunlight is that it has a lot of UV radiation that can produce mutations in the DNA. if the exposure is too strong, the amount of mutation will be so big that the cell will simply die (this is when you peel at the beach, layers of skin cells died and falled down). this mutations in the skin cells DNA can produce many deseases, beeing cancer the most conspicous one. \nMelanin, the skin pigment, is a very good absorber of UV radiation, so black people don't have problems in high radiation places, whereas whities need to be extremely carefull.
1144704
Excessive exposure to the sun and regular sunburns can lead to skin cancer
401656
Damage to the human organism is dependent on frequency, distance to the source, and transmit power (in Watts)\n\nSee the following:
129216
I have clicked on the link and I read about a chemical substance(filter), that is called PBSA and is contained in some sunscreens. \nIt's impressing!\nWe put on our skin a product in order to protect it and we do exactly the opposite! Thanks for the information. I haven't heard about this, but BBC site is a trustworthy site, so this notice must be valid.\nI suppose that this special case is the result of a European Union program about chemicals, their detection and their elimination from our daily life.\n\nKaterina
538685
Definitely heat exhaustion. Heatstroke you would have died it not treated at an hospital. Heat exhaustion is when your body is taxed to it maximum but you are still able to sweat (bodys way of regulating heat) and help keep you cool. In a Heatstroke your body shuts down it's cooling mechanism and you must be treated immediately. Your temp rises so fast in a heatsroke that within minutes your body literally cooks itself if not treated. Your skin would be very hot and dry with a heatstroke.
1176647
Good luck\nTreatment is not always successful. Effective measures include the following: \n\nSun protection wearing clothing with long sleeves (more effective than sunscreens alone). \nCooling lotions as required (camphor and menthol). \nCervical spine manipulation. This must be done by an appropriately qualified health professional. \nElectrical cutaneous nerve field stimulation. \nCapsaicin cream - this depletes nerve endings of their chemical transmitters. \nLocal anaesthetic creams. \nAmitriptyline tablets at night.
262227
any oxidative substance (potassium permanganate), ultraviolet rays, sun, air, hydrogen peroxide, etc
1058186
You're tired and lethargic from being too hot and a little dehydrated. Probably a little sleepy and stiff from lying around too, if you're actually sunbathing.\n\nThe suns energy is electromagnetic radiation, that's not the same kind of energy your body runs on. Your body runs on chemical energy, that is, energy derived from breaking down chemicals.\n\nThe sun's energy comes from fusion reactions.\nA fusion reaction is when two atomic nuclei (the part in the middle of an atom) are joined into another heavier element.\n\nOur sun is a medium size main sequence star. Which means that it isn't too big, and that it's in the prime of it's life. It fuses hydrogen into helium for the most part. \n\nWhen a fusion reaction happens not all the mass of the two atoms from the beginning goes into the final single atom, the rest flies off as radiation. The radiation excites the atoms in the sun and they give off the electromagnetic radiation that we receive.
414258
Some scientists believe that the weather affects humans much more than we realise in much the same way as it does animals. We already know about S.A.D. ( Seasonal affected disorder) which makes a sufferer feel depressed when not receiving enough sunlight which helps the body to produce vitamin D. Symptoms include lethargy , lack of appetite and generally feeling low and disinterested. Some people are particularly susceptible to magnetism and static caused by storms and suffer from a wide range of symptoms such as feeling nervous and jumpy before a storm and headaches and nausea.\nThis expression has been around for a number of years so I imagine that because people lived closer to nature years ago they had a greater understanding of this phenomenon and that's probably where the saying emerged.
1177025
definitely not, it is the safest way 2 tan your body, sun beds and the sun itself can both cause skin cancer, bring on the st. tropez K