Your health is written in your hands

Is there enough fluid in your body?

Locate the crease at the base of your little finger, and press the fleshy pad above this with your thumb. A bubble should pop up under the skin on the wrist side of the crease. ‘A small bubble indicates you're well hydrated,' says Simon. ‘No bubble means you're dehydrated and need to drink more, but a big bubble is a sign of fluid retention. Cut down on salt, and assess whether you're drinking too much water - your body has to process it, and may be struggling.'