10 reasons you're always tired (lack of sleep not included)

If you’ve tried every sleep trick in the book - reading, camomile tea, early nights - and still find yourself dozing off during the day, it’s time to take a closer look at your lifestyle.

Simple tweaks can make all the difference to your quality of sleep, resulting in a happier, more productive you. Here are a few things that could be causing your daytime sleepiness.