A video circulating on social media claims to show a quick and effective method for checking oneself for dehydration. The video shows two people pinching the skin around the top of a knuckle so it ...

Feel tired, thirsty or light-headed? It’s likely you’re one of the almost nine in 10 Brits who don’t drink enough water – which can quickly lead to dehydration. Dehydration is a state where your body ...