Exercises like swimming could reduce the risk of Alzheimer's disease
Exercise to prevent Alzheimer’s? Why not - interesting science news

Physical activity has been shown to improve memory. However, now researchers have shown that it could also decrease the risk of Alzheimer’s disease.

Recently, it was shown that exercise releases a hormone named irisin. While the initial thought was that it was involved in energy metabolism, now researchers have shown that it also improves neuronal growth in the hippocampus, which is a brain region, involved with learning and memory. More interestingly, post mortem evidence showed that irisin levels were lower in patients who had Alzheimer’s.

The researchers then tested the hypothesis in mice and found that inhibiting irisin in healthy mice impaired their memory and boosting its level improved it. This could be the first step towards developing new drugs for Alzheimer’s disease.

Read the full story: Columbia University Irving Medical Center
Scientific publication: Nature Medicine


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