In 1975, a man sustained a terrible injury to his brain that left him, among other things, unable to distinguish tastes. He couldn't tell sugar water from salt water. In 2005, one experiment caused him to strongly prefer sugar to salt. Here's the tweak that changed things.
Charles Domery was a Polish man whose eating habits astounded three armies. Tarrare was a Frenchman who went from carnival act to spy to suspected murderer. What made these men so desperately hungry?
Have you ever had anyone tell you that they feel the "good kind of tired" while you are feeling the much-more-common bad kind of tired? How do you experience having a good appetite versus just being hungry? To put in scientific terms, how do we judge valence?
The amygdala is popularly referred to as the brain's "fear center," due to the central role it plays in regulating the body's fear response. So pivotal is this small, almond-shaped structure's involvement, that S.M. (a woman whose amygdala has been ravaged by a rare condition known as Urbach–Wiethe disease), has been…
Scientists have found that the bigger your Facebook friend roster is, the larger your brain is.
Biologically speaking, humans are pretty much just another animal, and it's actually hard to come up with any clear explanation for what sets us apart. But we have a hard time accepting this ... and the reason we're in denial about our animal status may be hardwired into our brains.
Just a few weeks' worth of light meditation can change the structure of your brain, seemingly for the better. Thirty minutes a day can actually increase people's capacity for learning while shrinking the parts of the brain responsible for stress.
How you take care of your body can have serious effects on the state of your mind...and either extreme might be bad for you. Two new studies reveal both obesity and strenuous exercise can be bad news for your brain.
The amygdala is a brain structure crucial for regulating emotions. But the size of the amygdala also reveals just how rich and varied a social life a person leads. The bigger your amygdala is, the bigger your social network.
A woman with a rare disease that destroyed the fear center of her brain is completely unable to be scared or recognize when other people are afraid. Her story reveals why we need negative emotions, and could help PTSD sufferers.