Boris Johnson is planning a war on obesity after deciding his own touch-and-go battle with coronavirus was exacerbated by him being overweight. The PM is ready to ditch long-standing opposition to 'nanny state' policies and launch a crackdown on the nation's bulging waistlines after coronavirus is defeated. He's told senior advisers that the experience - which he famously said 'could have gone either way' - has left him determined to lead a public health drive. Being obese doubles the risk of needing hospital treatment for coronavirus, research shows. And with one in three British adults now clinically obese, the UK...