The average five-year-old consumes their own body weight in sugar every year in this country - a scary illustration of the scale of the sugar problem. The new sugar tax is supposed to tackle this, but what's the evidence that a tax on sugary drinks alone will make a difference? Dr Margaret McCartney reviews the evidence from other countries, which have also used fiscal measures to nudge their populations into eating a healthy diet.
PrEP - pre-exposure prophylaxis - is the latest advance in the ongoing battle against HIV. Studies show this preventive HIV therapy can reduce the risk of HIV infection by 86%. So the announcement by NHS England that it wasn't its responsibility to commission the drug has been met by shock and disappointment. Sexual Health and HIV consultant, Dr Jake Bayley, tells Mark that PrEP is a game changer in preventing HIV in high risk groups and the news that it won't be rolled out nationally, as expected, means the UK is falling behind in HIV prevention.