Keep hydrated

Water is vital for health: our bodies don't work properly if they are dehydrated and we confuse sensations of thirst with feeling hungry, causing us to eat when we don't need to. In a climate like the UK's we should drink a minimum of 1.2 litres (6-8 glasses) of water each day. The warmer the weather and the more active we are, the more we need to drink.

Four ways to drink more water:

• Start as you mean to go on, with a glass of water when you wake
• Keep a bottle or jug of fresh water on your desk at work
• Carry a bottle of water when you're out and about
• Eat more fresh fruit and vegetables (they contain water as well as vitamins and nutrients)

Drinking water is always a healthier alternative than high-sugar soft or fizzy drinks.