One common way to calm down is to breathe slower, and brain researchers say they've figured out how that works, "Today" reported.
A Stanford-led study of mice found that cells in the brain stem linked to mood and activity are triggered when the animal breathes slowly.
"There are many distinct types of breaths: regular, excited, sighing, yawning, gasping, sleeping, laughing, sobbing," said Mark Krasnow, a Howard Hughes Medical Institute biochemistry professor at Stanford University who oversaw the study. "We wondered if different subtypes of neurons within the respiratory control center might be in charge of generating these different types of breath."
The researchers are hopeful their findings, reported in the journal Science, can lead to therapies for stress, depression and more, even a better way to prevent sudden infant death syndrome.