The study found that people who are obese have less brain tissue 8% compared with people who have normal weight. In other words the brain of the obese condition is 16 years older than those with normal weight.
Results are based on the results of brain scans of 94 people aged 70s. "The results of a scan showed degeneration of the brain of someone who are obese," said professor of neurology and principal investigator, Paul Thompson, from the University of California, Los Angeles (UCLA), United States (LiveScience.com).
"Eight percent is a very large number and may increase the risk of diseases such as Alzheimer's disease and other brain attack," added Thompson. Obese people can lose brain tissue located at the front. This area has a memory function and the brain can think critically. Not only are obese have a risk. Someone who has overweight but not including the risk of obesity also has a brain degeneration.
"For those who obese, the brain will look sixteen years older, whereas for the excessive weight of the brain will look older than eight years," said Thompson.
The level of obesity can be seen through the measurement of body mass index (BMI), i.e weight (kilogram) divided by height squared (meters). Body mass index above 25, counted being overweight, and above 30, classified as obesity.