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 and energy needed to perform our best. But stress isn’t all good. When activated too long or too often, stress can damage virtually every part of our body. Sharon Horesh Bergquist gives us a look at what goes on inside our body when we are chronically stressed.

Lesson by Sharon Horesh Bergquist, animation by Adriatic Animation.

How the food you eat affects your brain – Mia Nacamulli

View full lesson: http://ed.ted.com/lessons/how-the-food-you-eat-affects-your-brain-mia-nacamulli

When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So which foods cause you to feel so tired after lunch? Or so restless at night? Mia Nacamulli takes you into the brain to find out.

Lesson by Mia Nacamulli, animation by Private Island.

How Do Pain Relievers Work? – George Zaidan

View full lesson: http://ed.ted.com/lessons/how-do-pain-relievers-work

Some people take aspirin or ibuprofen to treat everyday aches and pains, but how exactly do the different classes of pain relievers work? Learn about the basic physiology of how humans experience pain, and the mechanics of the medicines we've invented to block or circumvent that discomfort.

Lesson by George Zaidan, animated by Augenblick Studios.