DEFEAT HOT WEATHER
For effects of cold or iced drinks when heated mix ‘Bellis Perennis-Q’ 1 drop per liter in the water bottles in your fridge.
Hot weather is a boon for the poor (our farmers work in open sun for long periods) but it may be a curse for the sensitive wealthy persons living in air-conditioned houses; here is given a brief description of our body response in rising temperature:
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20C (68F) we feel
comfortable. Heart rate is normal. As the temperature increases to
25C (77F) light sweating
starts. At 30C (86F)
we feel discomfort our blood cools at skin surface. Concentration is affected.
There is moderate sweating. At 40C (104F)
there is heat exhaustion - heavy sweating. Rapid heart rate. Tiredness. Nausea.
When it further rises to 45C (113F)
there is heat stroke: Sweating stops. Hot, dry skin. Core temperature rises.
Fainting. Danger of organ damage and death.
One of the biggest dangers of a heat wave is the increased risk of dehydration (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) leading to confusion, lethargy and problems with breathing and heart rate. Normally the sweat we produce when we get hot keeps us cool when it evaporates from the surface of our skin. When it is extremely hot or when we over-exert ourselves, this system can fail, and body temperature can start to climb to dangerous levels leading to heat stroke or exhaustion causing headaches, dizziness and muscle cramps, but it can also be life-threatening. It is dangerous because onset of symptoms is very rapid.
In high temperatures body losses more fluid than normal so it is important that we increase supplies by drinking and eating juicy fruits. Drink more water, sip it, rather than gulp it down. Eat watermelon and muskmelon. 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. However, drinking excessive amounts can bring problems of its own. You might think a cold beer is exactly what the doctor ordered, but in fact, alcohol dehydrates the body, and consumption should be kept to a minimum. If you can't face drinking lots of water, non-carbonated soft drinks, such as fruit juice, are a reasonable alternative.
Avoid hot, heavy food. Salt pills / powders 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.
The best place to be on a blistering day is in the shade. If you must go out, then ensure that it is for short periods, and that you use an umbrella. A sun sunburn is a sign of damage to the skin, is painful, it increases the risk of skin cancer. 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.
Do not exercise vigorously during the hottest times of the day. Instead, run, jog or exercise closer to sunrise or sunset. Take things slowly and adapt to the pace of life in the sun. If you feel breathless or your heart is pounding, stop what you are doing and try to cool your body down, for example, by taking a cool shower. Rest if you feel faint or dizzy.
Wear light, loose-fitting clothing, such as cotton (KHADI clothes are best), so sweat can evaporate. Dark, heavy clothes absorb heat, but remember that some thin materials do not provide a sufficient barrier to the sun's dangerous UV rays. It is also a good idea to wear a wide-brimmed sunhat, preferably with vents. Wear sunglasses to protect your eyes.
Keep your home well ventilated and cool. This is particularly important at night, when the body cools down. Try to avoid anywhere where shelter is minimal, and ventilation poor. Parked cars can be a particular hazard. If you can, try to stay in an air-conditioned environment. If you have no alternative, but to travel in a hot, stuffy environment - for instance on the Tube - then make sure you carry a bottle of water with you. If you face a long journey, it may be wise to plan breaks to go above ground for some fresh air.
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. It is important not to wrap them up in blankets or heavy clothing when it is hot - but it is equally important to ensure that they are not exposed to direct sunlight.