At Back to Health, we seek to promote active lifestyles among our patients, especially as they reach middle age and beyond.
This is because we know that people remain functional and independent
much longer when they engage in regular physical activity, and there is a
raft of studies to support this fact.
Now it appears that regular, moderate aerobic exercise also facilitates the growth of new brain cells,
probably by increasing blood flow to the dentrate gyrus. What the heck
is that, you ask? It is a small section in the area of the brain called
the hippocampus which is crucial for memory. In research at Columbia
University in 2007, scientists discovered that when mice ran on their little wheels they produced new brain cells at twice the rate of sedentary mice.
Additional research at the Salk Institute by Fred Gage, one of the
foremost neuroscientist working today, found that exercise had the same
effect on elderly mice. The benefit of the neurogenesis was that the
exercising mice were much better learners than their sedentary
counterparts.
In follow up studies on humans, it was found that exercisers had nearly
twice the blood flow of non exercisers and that the increase occurred
in the area of the brain that is critical for memory-you guessed it-the
dentate gyrus!
Over
the last several years scientists have been focusing attention on
what-if anything- can help our brains as we age. There are lots of ideas
and many false claims, but at this point the scientific research
indicates that exercise is the answer.
The great part about this is it's something that we can do for ourselves and it's free!
Professor Gage recommends that we all do something active-even walking at a moderate pace- for 30 minutes each day. So get your shoes on and get going; your dentate gyrus will appreciate it!