And now Alessandro Petacchi is working with two medical experts in his defense to his 'non-negative' doping control following stage 11 of the 2007 Giro d'Italia.

Why do muscles get tired? The experience is universal, common to creatures that have muscles, but the answer has been elusive until now.

The number of adults seeking medical help for cannabis addiction has risen by 50% since Labour downgraded the drug, health authority figures show.

When it comes to joint injuries, rotator cuffs are the repeat offenders. Surgery can fix the debilitating shoulder problem, but