Research at the University of California at Stanford, as reported in the journal Archives of Internal Medicine, compared members of a running club with healthy non-running individuals, all of whom were over the age of 50 at the start of the study. Twice as many non runners had died than runners after 19 years. The researchers believe that running may not just boost health and improve immunity, but also increase cognitive performance. This is supported by a study undertaken at the University of Kansas school of Medicine (reported in the journal Neurology). The study concluded that by exercising individuals with early Alzheimer’s may have better cognitive performance due to increasing blood flow to the head. Poor blood flow to the head can result in loss of memory.
Another study from Scientists at the University of Calgary, in Canada, also proves that regular physical activity benefits blood flow to the brain, which in turn helps mental agility. The researchers compared two groups of women with an average age of 65. One group took part in regular exercise, while the other was inactive. Their blood flow, heart health and brain power were then tested. Not only did the active group have lower blood pressure and better blood flow, they also scored higher in mental agility tests, proving that basic fitness – something as simple as walking every day – is critical to staying mentally sharp as we age.