Dr. Suhail Al-Roken, Consultant Neurologist and Stroke Specialist at Rashid Hospital, Dubai Health Authority, has identified five major causes of dementia and Alzheimer's, stressing the need to stay away from them altogether.

He explained to the UAE today that the exercise of violent sports, which may hit the head with multiple concussions and blows, one of the most important causes of this disease at an early age.

"The second reason is not to control high blood pressure, and keep it at a safe level constantly.

The third reason is overweight and obesity, which in turn affect the body's functions and make it vulnerable to dementia and Alzheimer's.

The fourth cause of the disease is alcohol and alcoholism, which in turn causes the body to lose important vitamins.

"The fifth reason is a lack of vitamins from the body, especially B12-B1-B6."