First Type: - Some children are born thin inheriting their parent's physical built. This can, however, not be taken as a rule as a some times; we can even see very thin children born to stout parents. If the child has a good appetite and is also quite active, he/she may remain lean & healthy inspire of being overfed. Some children eat all the time but they never sit still for a minute. They mostly play outdoor games like cricket, badminton & other games that involve constant running. Even at home they are never seen idle. In such cases whatever the child consumes, gets converted into energy because of his over activeness. This type of thinness, there fore, need not be cause for worry at all.

Second Type: - In very young children, sometimes there are severe deficiencies like vitamin; etc. sometimes they fall sick very often or suffer from some progressive illness, physical or mental, and keep on losing weight steadily. No amount of tonics and special food can make them gain weight. The resultant low resistance of the body invites diseases leading to emaciation.

Some people suffering from progressive illness or chronic disorders fail to gain weight inspite of rest & good food. In adults, when there is severe anemia caused by worms, especially hood worms, emaciation is inevitable. Any attempt to make them gain weight will not be successful without expelling the worms. A unani herbal treatment through natural methods can bring almost a complete cure & general improvement in the condition of the sufferer & slowly weight gain can be achieved.

In some young children great appetite is seen where in they eat like grown ups, which may seen to be abnormal. The quantity of the stools they pass will also be found to be above normal in such cases. But inspite of this, they keep losing weight & remain extremely thin. In such children, the main cause for thinness & fatigue is that their intestines are infested with worms. Unless the worms are eliminated such children will remain weak & thin.