Training showing the correct way to lift heavy objects does not prevent back injuries, according to a systematic review published on bmj.com today.

A drug already used to treat parasitic infections, and once looked at for cancer, also attacks the human immunodeficiency virus (HIV) in a new and powerful way, according to research published today online in the open access journal Retrovirology.

In the first study to use imaging technology to see what goes on in the brain when we scratch, researchers at Wake Forest University Baptist Medical Center have uncovered new clues about why scratching may be so relieving – and why it can be hard to stop. The work is reported online in the Journal of Investigative Dermatology and will appear in a future print issue.