A review found a link between cannabis use and violence, but weaknesses in the evidence make claims that users are twice as likely to be violent misleading.

I believe that it is part of a previously unidentified major arterial Roman road connecting modern Pembrokeshire with Ceredigion to the north.

Optogenetics, a field that started with an algae gene, is shedding light on new treatments for eye and neuropsychiatric conditions.

Adoptive parents can spend years helping children feel safe after early trauma, often while struggling to find support for their own mental health.