Acetylcholine regulates blood flow, but the source of blood acetylcholine has been unclear. Now, researchers at Karolinska Institutet have discovered that certain T cells in human blood can produce ...

In temporal lobe epilepsy — a common and debilitating form of the disorder — seizures often cause those affected to lose consciousness. But why that happens has been unclear. In a new study, Yale ...

Neurons perform numerous complex tasks by communicating with each other via small messenger molecules called neurotransmitters. Accurately detecting them is crucial to understanding the functioning of ...

A type of light-sensitive cell in one of the visual systems of fruit flies transmits two chemical messengers, histamine and acetylcholine, in response to the same light signal. These two molecules act ...

The following guide offers a detailed overview of several classes of medications that research links to a higher risk of dementia. You will find what these drugs treat, the evidence connecting them to ...

The animal brain consists of tens of billions of neurons or nerve cells that perform complex tasks like processing emotions, learning, and making judgments by communicating with each other via ...