LifeScientific truth doesn't exist – but we must still strive for answersEven in physics, there is no such thing as truth. We should carry on trying to categorise the world, though, providing we realise that it sometimes resists such effortsLeader
VideoGut health: How to look after your microbiome The microbes living inside you hold a subtle sway over both your physical and mental health, explains Megan Rossi. Here's how to look after your gut microbiome Video