Feeling sluggish? It could be that your metabolism just needs a helping hand – literally. Surya Mudra is a yoga pose that is meant to stoke your inner fire, giving your metabolism a much-needed jolt and triggering your digestive system into action. And thankfully, this pose only involves your hand, which means you can utilize it when you feel most lethargic – at your desk or on the sofa. Of course, this doesn't mean you can forgo exercise and healthy eating, but it's worth a shot, right?