Epinephrine and norepinephrine are hormones and neurotransmitters that help the body respond to stress or fear. Epinephrine increases heart rate and opens airways during emergencies. Norepinephrine ...

The anxiety and stress response in our bodies began before modern humans existed. Researchers are probing the effects of this powerful force. Learn how our bodies react to stress, which can save us or ...

Good news for adrenaline junkies. An adrenaline burst could help scientists learn when we experience surprises due to the hormone noradrenaline, or norepinephrine. A study conducted at the ...

This is the first in an occasional series on the origin of commonly used medicines. When epinephrine was first discovered at the turn of the 20th century, it was essentially a drug without a disease.

Hormonal changes due to stress, life stages, or conditions such as primary aldosteronism, pheochromocytoma, Cushing syndrome, and thyroid disease may lead to high blood pressure. To diagnose a ...

In 1982, Angela Cavallo of Lawrenceville, Georgia received the Mom of the Year Award. (Not a real award, but if it existed, she would probably win, hands down.) Her son Tony was working on the ...