You are going to sweat so it’s important to keep the water flowing. We should all try and drink at least 2 litres of water every day. We recommend you drink 1/2 litre of water an hour before class – enough to keep you hydrated during class but not so much that you feel bloated during the postures. In the class itself, after the initial warm-up postures, you should sip water between postures whenever you need to. After class, it’s also really important to get those lost electrolytes back into your system as well.