Back in San Francisco, Li realized that the beta-endorphin he had isolated contained ... causing the craving for narcotics and a withdrawal response.

So, why do so many people enjoy spicy food? In response to the pain, your brain releases endorphins and dopamine. Combined, these chemicals create euphoria similar to "runner's high". Ultimately ...

Laughter is a complex human response that can manifest itself in a variety of situations, including those that are uncomfortable or awkward. According to experts in psychology and ...

Beta-endorphin (β-END) is a naturally occurring ... known as POMC neurons, triggered this response. The neurons tended to become active as soon as the mice were exposed to sugar, enhancing ...