Alzheimer sport is good for the memory!
Posted: November 29, 2012 08:32 PM PST
According to the World Health Organization (WHO), more than 35 million people worldwide suffer from dementia. And it is a phenomenon that goes: every year, with more than 7 million new cases are detected. And 7 times out of 10, the diagnosis of Alzheimer's disease is made. Although no treatment exists against it at the moment, U.S. researchers recently demonstrated the benefits of being active on a daily basis to prevent disease. On the basis of the Cardiovascular Health Study, Dr. Cyrus Raji and his colleagues at the University of California at Los Angeles, have reviewed various physical activities by nearly 900 adults, average age 78 years, gardening to dance through the bike. All participants then underwent magnetic resonance imaging (MRI). Intellectual and physical activities ... results, researchers found a strong correlation between calorie consumption and the volume of gray matter present in areas essential to cognitive function. The hippocampus in particular, plays a key role in learning and memory. For Dr. Raji, "rather than by physical activity, this result can be explained by the diversity of exercises practiced. Most were aerobic activities, which we know, improve cerebral blood flow and strengthen neural connections. " It is therefore important to focus on moderate-intensity activities such as walking, running or cycling. "If further work is needed," admits Cyrus Raji, "we can say that brain aging can be slowed by a physically active lifestyle." Finally, remember that a previous study had already reached the same observation. The researchers had noted that older games enthusiasts, walking and kitchen were three times less affected by Alzheimer's disease. Source: Radiological Society of North America