Study: Low Serotonin Levels Linked to Dementia

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. A brain showing decreases of serotonin transporters (blue) in the whole mild […]

Are Friends Better for us than Family?

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. In a pair of studies involving nearly 280,000 people, William Chopik found that friendships become increasingly important to one’s happiness and health across the lifespan. […]

Alzheimer’s begins before symptoms appear

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. Cognitively normal individuals who had elevated levels of a toxic brain protein called […]

Alzheimer’s disease likely not caused by low body mass index

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. “Although prior studies found an association between Alzheimer’s disease and low BMI, the […]

Alzheimer’s: The disease that could bankrupt Medicare

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. Those startling statistics are mirrored worldwide. In 2016, the World Alzheimer’s Report estimated that 47 million people around the globe […]