The easiest way to beat that 3pm slump (no caffeine required).

We all know we should be drinking six to eight glasses of water a day – and here’s why.

Two thirds of our body weight is water, and even our teeth are ten per cent H2O – so it makes sense that we need to keep topping up.

In fact, just a three per cent drop in hydration can lead to headaches, fuzzy thinking and brain fog.

So if you want to beat that 3pm energy dip?

Drink up.

How do you ensure your body gets enough H2O?

Want more? How about:

Constantly suffering from headaches? These 6 things could be the reason.

‘The one simple factor that can slow me down at work.’