Topic - Health
Many different factors may cause disease. Examples of such are genetic defects or
nutritional deficiencies. The reasons that may cause disease can be broadly categorized
into the following categories like social, psychological, chemical and biological. Some of
them may fall into more than one category. Some diseases are contagious or infectious.
Infectious diseases can be transmitted by any of a variety of mechanisms, including
aerosols produced by coughs and sneezes, bybites of insects or other carriers of the
disease, and from contaminated water or food.
5. First aid
There are three main aims of first aid and they are:
· preserve life
· prevent further injury
· promote recovery
In addition, some may add a 4 th 'P' protect yourself, although this is not an aim of
providing first aid and some would consider that it is covered by 'Prevent further injury'.
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