Low-intensity activation of the vagus nerve appears to have increased a patient’s awareness of his surroundings after 15 years without communication.

Changes in diet can cause gut microbes to produce acetate, which in turn stimulates insulin secretion and obesity in rodents, scientists show.

Singers in a choir unconsciously coordinate their breathing patterns, which leads to synchronized heart rates, especially during slow chanting.

A common dietary supplement alters neurotransmission to ease anxiety.