In the 19th century, England's working classes frequently used opium. But there weren't laws against the drug until the middle classes started using it.
Long before today's opioid epidemic, doctors shared stories of their own experiments with the drugs they prescribed their patients.
Scholars question the common conception that people with Autism Spectrum Disorder don't experience love like neurotypical people do.
Sigmund Freud told Carl Jung it was important to keep sexuality at the center of the human psyche, rather than anything spiritualist.
Now that the DSM lists severe hoarding as a disorder apart from OCD, psychologists are asking what explains its prevalence.
Mass layoffs, high unemployment, and home foreclosures resulted in declines in mental health. There may also be long-term effects that linger.
Human breast milk has been recommended as a cure-all since the 17th century.
While exceptionally rare, congenital analgesia, or a total insensitivity to pain, is a real condition that can be quite dangerous.
Probiotics are a hot topic--and big business--these days. But do they really work?