Animal studies and analysis of human data reveal a link between vitamin D deficiency and an increased risk of both opioid addiction and sun-seeking behaviors.
Early-life exposure to antibiotics may impact brain signaling pathways associated with social behavior and pain regulation. Young mice treated with antibiotics had reduced expression of receptors that mediate endorphin, oxytocin, and vasopressin signaling in the frontal cortex.
Hangxiety, the feeling of waking up with anxiety the morning after heavy drinking, is a common symptom associated with a hangover. Researchers explain how a heavy night's drinking alters neurochemistry, leaving some of us prone to waking with anxiety.
A PET neuroimaging study reveals high intensity impact training significantly increases endorphin release in brain areas associated with controlling emotion and pain.
A new study reports of a direct link between indoor tanning and substance abuse in high school aged children.