Headings of Health

Some industrial processes produce dusts. These processes include drilling, polishing, crushing and sawing. Industrial dusts are often much smaller than the ordinary dust in the air. This means that they can avoid being trapped by the mucus in the air passages. Therefore these dusts can get into the lungs. This can cause serious diseases such […]

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In spring and summer when the sun shines most of the day a large number of people have freckles. They are caused by the sunshine. It stirs a brownish pigment which normally lies in the deep layers of the skin and the pigment comes to the surface where it can be seen. The skin is […]

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The most important part of the nervous system of a human being, is what may be called the new brain. It is so large, and has grown out so far in all directions, that the whole part of the old nervous system is under it. Ordinarily when we talk about a man’s brain it is […]

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What function is performed by sweat? Why does the organism give it off in such large quantities? It is the mechanism by which a human organism protects itself against overheating. Evaporation uses large amounts of heat, 600 calories per litre of sweat. If all this heat were given oil by a human body, its temperature […]

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