Recent reports of babies born with opioid withdrawal symptoms after their mothers used kratom during pregnancy have generated much concern about the medicinal herb.

The expression of a slew of genes in psychiatric patients closely tracks pain intensity and predicts future emergency room visits, according to a study.

Men’s pain tolerance decreases when exposed to a setting where they’ve previously had a painful experience.

From cellular self-digestion to the effects of exercise on the brain, our features editor picks her favorite art custom-made for the magazine.

In a condition called mechanical allodynia, when everyday activities exact misery, the same neurons that ordinarily transmit normal touch are involved in feelings of pain.

Expressions of pain and orgasm are distinguishable, study finds.

Aimovig will soon be available for individuals who have four or more migraines a month.

Researchers silence pain neurons in the mouse spinal cord with injections of botulinum toxins modified to bind to the neurons’ receptors.

The coming legalization of recreational marijuana is already increasing funding for studies, but regulations on such research have been slow to change.