Introduction

Image of Professor Colin Espie
by Professor Colin Espie

Most of us know from painful experience that a lack of good sleep can affect all manner of things – such as our energy, concentration and mood. In fact, it's hard to think of an aspect of our daily lives that sleep doesn't affect. Evidence suggests that long-term poor sleep can increase our risk of developing a range of mental and physical illnesses – from depression to diabetes.

But despite all this it may still surprise you to learn about some of the things that your night's sleep might affect.

Next: Be more honest

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