One of medicine’s greatest innovations in the 20th century was the development of antibiotics. It’s a treatment that has transformed our ability to combat disease. And yet medicine in the 21st century is undertaking a re-evaluation of bacteria and concluding that, far from being uniformly bad for us, many of these organisms are actually essential for our health.
According to the ever-changing dietary guidelines of the campaign against obesity, fat is back in, but sugar is now out. Does the science behind this shift have any merit?
It’s clear that more studies are needed to determine how modern technologies are affecting our brains. But what sort of research questions should we be asking?