People of Sri Lanka can be categorised on two bases: ethnic groups and religion. On ethnic base biggest group are the Sinhalese and then the Tamils. On basis of religion follo â¦ wers of Buddhism form the largest community in Sri Lanka.
Functional tremor is the commonest type of functional movement disorder. In functional tremor there is uncontrollable shaking of part of the body usually an arm or a leg.This is due to the nervous system not working properly but not due to an underlying neurological disease.Functional tremor is sometimes mistaken for Parkinsons disease or other causes of tremor such as 'Essential tremor'. tremor is a rhythmical movement of an arm, leg or other body part such as the head. Functional tremor may come and go through the day. The tremor may become violent at times and change in speed.
Essential tremor is the most common type of movement disorder. Essential tremors are usually postural or intention tremors. An essential tremor may be mild and not progress, or it may slowly progress. If the essential tremor progresses, it often starts on one side and then affects both sides within a few years.