Just when you think you’ve mastered the art of everyday living, you realise that you’ve been doing an essential part of it all wrong. First, came the news that you’re not meant to boil your pasta in just any amount of water ― instead, you’re supposed to keep the liquid to a minimum for a starchier sauce emulsifier. And now, it turns out that when you floss your teeth matters ― and I, for one, have been on the wrong side of the divide from time to time. You probably already know that flossing ...
