It doesn't matter how full you are, you can always fit in a bite or two or three of pie and ice cream. Scientists say it has to due with special neurons in our brain that just can't get enough sugar.

Early in life, the protein Reelin helps assemble the brain. Later on, it appears to protect the organ from Alzheimer’s and other threats to memory and thinking.

Scientists say two separate brain circuits control how much salt we consume.

Humans instinctually forge loyalties to groups to survive. Being aware of these impulses can help us deescalate arguments and find common ground. Some notable leaders in history show us how it's done.

People seek out art and music that combine sadness and beauty. Scientists and artists say there's good reason why we're drawn to it.

An obscure bit of brain tissue appears critical to both out-of-body experiences and our sense of being anchored to a physical self.