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Source: Johns Hopkins Medicine Summary: In a study looking at brain scans of people with mild loss of thought and memory ability, researchers report evidence of lower levels of the serotonin transporter — a natural brain chemical that regulates mood, sleep and appetite.

EAST LANSING, Mich. – The power of friendship gets stronger with age and may even be more important than family relationships, indicates new research by a Michigan State University scholar.

Alzheimer’s disease begins destroying the brain years before mental deterioration is detected, a new study suggests. This finding means there could be twice the number of people with the neurodegenerative disease in the United States — and worldwide — as currently believed.

A new large-scale genetic study found that low body mass index (BMI) is likely not a causal risk factor for Alzheimer’s disease, as earlier research had suggested, according to a study published in the Endocrine Society’s Journal of Clinical Endocrinology & Metabolism.

Healthy aging of the brain relies on the health of your heart and blood vessels when you’re younger, a new study reports.

Every 66 seconds this year, an American will develop Alzheimer’s disease, according to the Alzheimer’s Association annual report, released Tuesday. By the year 2050, that number is expected to double to one every 33 seconds.