A 62-year-old man in Germany—called HIM—deliberately received the SARS-CoV-2 vaccination 217 times within a period of 29 months. Researchers were keen to know how he fared.

Sleep has become a bit of an obsession and has us questioning just how much we need. A large study has compared participants' duration of sleep against their risk of Type 2 Diabetes.

In pop culture and news coverage menopause and mood changes seem inextricably linked. A special series on menopause has just been published in the Lancet, with one paper specifically on mental health.

In hospital emergency rooms emotions can run high, and tempers can get frazzled, which is confronting for both staff and other patients.