A new UCSD study on jealousy among dogs indicates the emotion may be hardwired in the brain, evolving to protect social relationships.
For asthmatics, 'it's not just what you smell, but also what you think you smell.' Researchers found that just believing an odor is harmful can cause airway inflammation.
Paracetamol - known in the US as acetaminophen - is widely recommended for low-back pain. But a new analysis suggests it performs no better than a placebo in aiding recovery.