Bad Lifestyle Habits Linked to Dementia

Smoking can almost double the risk of developing dementia later in life, research has found.

A study of more than 11,000 people -- the biggest of its kind -- also found a strong link between lifestyle-related illnesses, such as high blood pressure and diabetes, and mental problems among elderly people.

Scientists say modifying unhealthy habits may help stave off brain disintegration.

Current smokers aged 46-70 were 70 percent more likely than those who had never smoked to get dementia and those with high blood pressure were 60 percent more likely.

The risk rose to more than double for diabetics in the Minnesota University report for the Journal of Neurology, Neurosurgery and Psychiatry.

Dr. Alvaro Alonso, of the university, said: "Our results emphasise the importance of early lifestyle modification and risk factor treatment to prevent dementia."

The researchers believe the results suggest quitting smoking and controlling blood pressure in midlife decrease the risk of dementia.