It pumps your blood throughout your body, keeping oxygen, nutrients and waste flowing to where they need to go to keep you healthy. But how much do you know about your heart? Here we will cover the most important steps you can take to keep it beating strong.

You know that if you eat a sweet snack, such as a candy bar or a sugary donut, you'll get a spike of energy, soon followed by a crashing low. Sugar highs and lows are just one of the many ways food can affect how you feel.

A lack of sleep increases appetite, makes us more likely to eat unhealthy foods, and even affects how body fat is lost while dieting.