How stress affects your body - Sharon Horesh Bergquist
View full lesson: http://ed.ted.com/lessons/how-stress-affects-your-body-sharon-horesh-bergquist Our hard-wired stress response is designed to gives us the quick burst of heightened alertness...
========== Cramming for a test? Trying to get more done
than you have time to do? Stress is a feeling we all experience
when we are challenged or overwhelmed. But more than just an emotion, stress is a hardwired physical response
that travels throughout your entire body. In the short term,
stress can be advantageous, but when activated too often or too long, your primitive fight or flight
stress response not only changes your brain but also damages many of the other
organs and cells throughout your body. Your adrenal gland releases
the stress hormones cortisol, epinephrine,
also known as adrenaline, and norepinephrine. As these hormones
travel through your blood stream, they easily reach
your blood vessels and heart. Adrenaline causes
your heart to beat ...