A hormone released during exercise may protect the brain against Alzheimer’s disease, research suggests.

Scientists have said that irisin hormone is released from muscle tissue into the circulation while a person is exercising. The irisin hormone produced by exercise may slow the progress of Alzheimer’s disease and delay the onset of dementia.

This was revealed following research study done recently by a team of US and Brazilian scientists, led by Fernanda De Felice, of the Federal University of Rio de Janeiro. They found lower levels of Irisin in the brains of Alzheimer’s patients compared with healthy individuals.

The scientists said that during exercise a hormone called irisin is released from muscle tissue into a person’s circulation. This hormone appears to have a complex array of functions, including a role in the brain.

Previous studies have suggested that physical exercise may benefit people with neurodegenerative illnesses such as Alzheimer’s. New research involving experiments carried out in mice found that irisin helped to boost the brain health and memory of mice.

The findings are now published in the journal “Nature Medicine.” This has sketched out a biological method that might explain such positive effects; not only on the brain and memory of mice but also on the brain and memory a person.

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