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The Mediterranean diet is associated with a variety of health benefits, including a lower incidence of dementia. Now, researchers have identified a specific ingredient that protects against cognitive decline: extra-virgin olive oil. In a new study, the researchers show that consumption of extra-virgin olive oil protects memory and learning ability and reduces the formation of amyloid-beta plaques and neurofibrillary tangles in the brain -- classic markers of Alzheimer's disease.

Bits of a protein that builds up in Parkinson’s disease trigger the immune system, causing it to tag them as foreign invaders.

Disrupting a problematic gene in brain cells can reverse Huntington's disease pathology and motor symptoms in a mouse model of the inherited neurological disorder

Slowing down the aging process might be possible one day with supplements derived from gut bacteria.

The approach is still in the early stages of testing, but initial results from four people look promising, with all showing some improvement 18 months after surgery.

A team of researchers is using breakthrough gene-editing technology to develop a new screening tool for Parkinson's disease, a debilitating degenerative disorder of the nervous system. The technology allows scientists in the lab to 'light up' and then monitor a brain protein called alpha-synuclein that has been associated with Parkinson's.

This new method can stimulate deep parts of the brain without surgery and — if it pans out in humans — it could be very helpful for people with neurological conditions like Parkinson’s, depression, or epilepsy.

Sleeping less than six hours was associated with higher risk of death in people with metabolic syndrome, a cluster of several heart disease and diabetes risk factors. This effect was particularly strong in those with elevated blood pressure or poor glucose metabolism.

Sleep loss in mice sends the brain’s immune cells into overdrive. This might be helpful in the short term, but could increase the risk of dementia in the long run

Doxycycline, an antibiotic used for over half a century against bacterial infections, can be prescribed at lower doses for the treatment of Parkinson's disease, say researchers.