Useful properties of nettle
There are about 50 species of nettle. The greatest distribution in Russia received a stinging nettle and stinging. Nettle is a diuretic, laxative, antispasmodic, expectorant, healing, tonic effect. Nettle extract is used to stop prolonged or heavy bleeding in women. Nettle is prescribed to treat hundreds of different diseases, including kidney stones and gall bladder, diseases of liver and biliary tract, hemorrhoids, heart disease, tuberculosis, allergic reactions, bronchitis, skin diseases, etc.
Nettle - a storehouse of vitamins and minerals. Its leaves contain two times more ascorbic acid in comparison with currants. Also nettle is rich in carotene, vitamins B2 and K. Nettle is a source of iron salts, potassium, sulphur, vegetable protein and Pantothenic acid. It improves blood clotting, increases hemoglobin and reduces concentration of sugar.
In cosmetics, nettle is used in hair care and scalp. It stops hair loss, improves their appearance, and successfully fights dandruff. Nettle is even used in food that she cooked soup and salads.
Why nettle stings
The leaves and stems of nettle are covered with thin spines, which are called stinging cells. At the end of each of them is a sack of liquid, which includes formic acid, histamine and vitamin B4 - choline. If you touch the plant, damaging the spikes, the contents of the bag penetrate into the skin. This place is starting to itch, turns red and looks like a burn. The reaction that develops from damage to the skin, causes pain and is extremely unpleasant. Wash liquid, as it entered his skin. Basically, the contents of the bag do not harm the organism of humans and animals, although it is known that the burn is a tropical species of nettle - Ongaonga - sometimes develops a severe allergic reaction that can be fatal.
The stinging properties of nettle is similar to the mechanism of action of the stinging cells of jellyfish, anemones and other aquatic life. Amazing sting rolled into a ball and expand when you touch them. Therefore, the collection of nettle need careful but firm movements to break the stem so that the thorns remained pressed against him. Then a ball on the end of the stud will remain intact and the liquid will not penetrate under the skin. If the defeat had happened, it is necessary to neutralize the acid alkaline. This can be done with juice of sorrel or of baking soda. A paste of baking soda mixed with a small amount of water, applied to the affected skin and hold until the disappearance of the burning sensation.
Advice 2: Why bee stings
Waliv person, the bee dies, but because these insects, unlike wasps, use their stinger only as a last resort. Most people have to deal with the stings of honey bees.
According to the observations of both scientists and experienced beekeepers, many types of bees sting only in the most extreme cases, and almost never attack without a reason. These insects attack the person, only if you see it as a threat. In particular, we are talking about the protection of the hive or honey, so professionals will never work in the apiary without wearing a special protective suit. Also, paradoxically, a bee can sting a man if he wants to defend himself. This means that if you squeeze the insect in the hand, you probably get a painful bite.
There are a number of obvious reasons why bees can sting. For example, these insects can't stand strong smells. They especially don't like the sharp scent of perfume, although they may react and smell of sweat. People in dark clothes bees sting more often than in light. Why this occurs is not known, however, to be safe, beekeepers work with the hives wear light protective suit.
The smell of smoke may cause the bees attack people. Scientists believe that this reaction is due to the special instinct that binds the smell of smoke from forest fires that destroy the honey and the homes of insects. The purpose of bees in this case – as quickly as possible to collect honey and fly away to a safe place, and any creature who gets in their way, is perceived as a threat that must be eliminated. It is important to know that bees react aggressively to your own poison. This means that if you are stung by even one bee, other insects will immediately feel it and also unable to attack you.
The aggressiveness of the bees depends on their breed. For example, the Carpathian considered to be the most calm. They rarely attack people and are not always protected even in the event of a serious threat. The Central Russian and Caucasian bees are much more aggressive. Some of these insects in special cases, it can even sting a person for no apparent reason.