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It has previously been discovered that tanycytes—cells found in part of the brain that controls —detect nutrients in and tell the brain directly about the food we have eaten.

Tanycytes do this by responding to found in foods, via the same receptors that sense the flavor of amino acids (“umami” taste), which are found in the taste buds of the tongue.

In the paper ‘Hypothalamic tanycytes generate acute hyperphagia through activation of the arcuate neuronal network.’ published today, the 8th June, in the journal PNAS, researchers from the School of Life Sciences at the University of Warwick, explain how tanycytes can increase appetite.

Persistently engaging in negative thinking patterns may raise the risk of Alzheimer’s disease, finds a new UCL-led study.

In the study of people aged over 55, published in Alzheimer’s & Dementia, researchers found ‘repetitive negative thinking’ (RNT) is linked to subsequent cognitive decline as well as the deposition of harmful brain proteins linked to Alzheimer’s.

The researchers say RNT should now be further investigated as a potential risk factor for dementia, and psychological tools, such as mindfulness or meditation, should be studied to see if these could reduce .

When it comes to monitoring electrical activity in the brain, patients typically have to lie very still inside a large magnetoencephalography (MEG) machine. That could be about to change, though, as scientists have developed a new version of a wearable helmet that does the same job.

Back in 2018, researchers at Britain’s University of Nottingham revealed the original version of their “MEG helmet.”

The 3D-printed device was fitted with multiple sensors that allowed it to read the tiny magnetic fields created by brain waves, just like a regular MEG machine. Unlike the case with one of those, however, wearers could move around as those readings were taking place.