It is our reaction to our external environment as well as our inner thoughts and feelings. Stress in essence is our body's natural response to dangers, the fight or fight mechanisms, the body's preparedness to do battle or flee from danger. This response involves a complex biochemical harmonal process.
Mild stress act as a useful motivation for activity and productivity. But when the stresses in our life are too extreme or too many, this may result in all kinds of problems.

An ageing population is a sign of successful social, health and economic policies. A old man reflects a happy and healthy family. Old age does not cause diseases but may be associated with them. Do not accept problem as inevitable results of ageing. Age alone is poor predictor of outcome for an individual. A treatment should not be restricted because a person is old.

Treating old man is like treating a child. This factor is especially important in selecting the medication in the treatment of old age problems. For e.g. in conditions of sleepnessness or hyperexitability homoeopathic Medications are of prime importance because without sedating the patient they can overcome the problems, acting at it's root cause.