What does adrenaline do?

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When stress first attacks -- whether the threat is emotional (bad news about a best friend) or physical (getting trapped in a blizzard) -- the brain’s first reaction is to signal to the adrenal glands to release epinephrine, better known as adrenaline. Among its many jobs are increasing heart speed and rushing blood to the big power muscles, just in case you have to move fast.

Adrenaline commandeers some of that blood from the skin and face, by the way, which makes you look washed out, which is where the phrase “white with fear” comes from. If whatever caused your heart to race passes, the adrenaline flow abates, your pulse assumes its usual pace, your palms dry, your color returns, and life as your body knows it goes back to normal.

From The Mind-Beauty Connection: 9 Days to Less Stress, Gorgeous Skin, and a Whole New You by Amy Wechsler.

Continue Learning about Endocrine System

Endocrine System

Your endocrine system works with your nervous system to control important bodily functions. The endocrine systems responsibilities include regulating growth, sexual development and function, metabolism and mood. The endocrine syst...

em also helps give your body the energy it needs to function properly. Endocrine glands secrete hormones into the bloodstream. Hormones are considered chemical messengers, coordinating your body by transferring information from one set of cells to another. Your endocrine system health can be affected by hormone imbalances resulting from impaired glands. A hormone imbalance can cause problems with bodily growth, sexual development, metabolism and other bodily functions. Endocrine system diseases or conditions include diabetes, growth disorders and osteoporosis.
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.