Human brain is a complex organ which controls all the body functions. The brain cells (neurons) communicate with each other to carry brain functions like remembering, problem solving, thinking, feeling, moving, body coordination and balance, breathing and digestion.
Aging (increase in age) is associated with several physical and mental health challenges. Decline in intellectual capability is one of the common issues seen in elderly. The elderly population in India contributes to around 10% of the total population. It is reported that the volume of brain and / or its weight declines with age at a rate of around 5% per decade after the age of 40 years. The shrinking of brain due to aging leads to decline in brain functions like memory.
One recent study in elderly population has reported 34% of its study population suffering from mild cognitive impairment. It adversely affects quality of life in elderly population and makes them dependent on others for their routine activities. It also increases the risk of depression and anxiety disorder. Dementia is the term used for progressive conditions that affect the cognitive (brain) functions.