Are you drinking enough? Teenagers: 1.6 to 1.9 litres for boys and 1.5 litres for girls per day. Turns out teenagers need to drink more than most of us, especially those aged between 14 and 18.

If you’re drinking throughout the day, and not necessarily keeping tabs on where to get your next snack, it also stands to reason that you wouldn’t have food in your stomach to help slow down ...