Like Morpheus, the Greek god of sleep, anaesthetists navigate the shadowy worlds between consciousness and oblivion.
Professional societies of doctors, surgeons or physiotherapists are more likely to recommend against treatments provided by others, our new research shows.
Doctors tend to overestimate how good their treatments are and underestimate the harms that come from them. But many studies have shown knee arthroscopy to be no more effective than fake surgery.
There's often limited success for many common types of surgery and understanding the evidence is the key to deciding what's best for you, write Ian Harris and Paul Myles.
Obese people who lose weight will encounter far less social stigma and may even be seen as fitter than if they had been lean all along, but they may still face prejudice, a new study suggests.