Exercise increases memory

Experiments on mice showed that new neurons developed in the dentate gyrus, a part of the hippocampus in the brain. This area is thought to be affected when memory decreases due to age and often occurs in the 30s.

The researchers used magnetic resonance imaging to demonstrate the development process in mice and then they also used this method to test the human brain before and after they exercise.

They have found similar patterns that show that neurons in humans can also grow new when we exercise.

Dr. Scott Small, a neurologist at Columbia University Medical Center in New York, said 'there has been no study to date to study different areas of the hippocampus as well. determine which areas will be most affected by exercise. '

The researchers wrote in the Journal of Methods of the National Academy of Sciences that they first conducted experiments on mice.

Fred Gage, a brain specialist at the Salk Institute in La Jolla, California, has shown that exercise can stimulate the development of new neurons in the mouse brain in a region similar to dentate gyrus in the human brain.

Dentate gyrus.(Photo en.wikipedia.org)

The team worked together to find ways to test this problem by using magnetic resonance imaging to monitor brain volume.

They argue that 'once these findings are confirmed in mice, we are very interested in determining how exercise affects blood volume in the hippocampus.'

It is obvious that they cannot remove the human brain to see if new neurons have developed but they can use magnetic resonance imaging to test this.

Researchers recruited 11 healthy adults and asked them to exercise for 3 months. They then took the brains of volunteers before and after. They also examined the health status of each volunteer by measuring the volume of oxygen before and after they joined the training program.

Exercise created blood circulation to the dentate gyrus. Researchers have found that the more healthy a person is, the higher the blood moving to this area.

The researchers wrote in the article that 'the surprising similarity of exercise stimulates the change in cerebral blood volume in mice and humans, suggesting that the effects of exercise has been impacted the same mechanism '.

Small says: 'Our next job is to determine which exercise regimens are most useful for improving memory and reducing common amnesia. Thereby, doctors can give specific exercises to improve memory. '

The Kiet