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Disrupted sleep in one’s 50s, 60s raises risk of Alzheimer’s disease

PET brain scans of healthy older adults show that those reporting lower sleep quality through their 50s and 60s have higher levels of tau protein, a risk factor for Alzheimer’s disease. Previous studies link poor sleep to beta-amyloid tangles also, sug…

Dementia study links gene with damage to brain connections

Insights into how a gene that increases the risk of Alzheimer’s disease disrupts brain cells have been revealed by scientists.

‘Mystical’ psychedelic compound found in normal brains of rats

A study in rats has revealed the presence of naturally occurring dimethyltryptamine, a hallucinogen.

Researchers grow active mini-brain-networks

Cerebral organoids are artificially grown, 3D tissue cultures that resemble the human brain. Now, researchers report success with functional neural networks derived from these organoids. Although the organoids aren’t actually ‘thinking,’ the researcher…

Serotonin deficiency could explain ‘imaginary’ somatic condition

New research suggests that a genetic mutation affecting serotonin levels could be the cause of otherwise medically unexplained pain symptoms.

What causes irritability?

Many factors can cause irritability, including life stress, depression, a lack of sleep, and premenstrual syndrome. In this article, we look at the possible causes of irritability and tips for managing it.

New mouse model of Parkinson’s disease shows how it spreads from the gut

Parkinson’s disease can begin in the gut and spread to the brain via the vagus nerve, researchers report. This pathway was observed in a new mouse model, which recapitulates both motor and non-motor deficits as well as early-stage and late-stage featur…

Neuronal Parkinson inclusions are different than expected

An international team of researchers challenges the conventional understanding of the cause of Parkinson’s disease. The researchers have shown that the inclusions in the brain’s neurons, characteristic of Parkinson’s disease, are comprised of a membran…

Boosting amino acid derivative may be a treatment for schizophrenia

Many psychiatric drugs act on the receptors or transporters of certain neurotransmitters in the brain. However, there is a great need for alternatives, and research is looking at other targets along the brain’s metabolic pathways. Lack of glycine betai…

Bipolar: Experts urge better initial care

Specialists reveal that people with bipolar disorder have to wait for a long time for a diagnosis, and that they fail to receive appropriate initial care.