Humans evolved to get better sleep in less time Insomniacs take heart: Humans get by on significantly less sleep than our closest animal relatives. The secret, according to a new study of slumber patterns across 21 species of primates, is that our sleep is more efficient
Overprescribing of opioids is not limited to a few bad apples Most prescriptions for opioid painkillers are made by the broad swath of US general practitioners, not by a limited group of specialists.
Sepsis: Cell therapy to repair muscle long-term impairment Researchers reveal major players in the severe muscle damage caused by sepsis, or septicemia, which explains why many patients suffer debilitating muscle impairment long-term after recovery. They propose a therapeutic approach based on mesenchymal stem cell transplantation, which has produced encouraging results and has proved successful in restoring muscle capacity in animals.Possible mechanism for specific symptoms in bipolar disorder discovered A gene variant linked to psychotic symptoms and cognitive impairment in people with bipolar disorder has been discovered by researchers. The study describes a possible mechanism for how the gene variant produces clinical symptoms by affecting levels of specific proteins in the brain.