Low pay pushes drivers to work extremely long hours, causing more crashes and more traffic deaths.
For a full picture of any given situation, we must be able to read it, understand it and anticipate what could happen next.
It's not just elite sportspeople who get muscle cramps. If you've ever experienced one, you'll know how painful they are. But why do we get them, and is there anything to be done?
Taking a power nap on a night shift can leave you feeling groggy. And eating a large meal can reduce your alertness. So, what's a tired shift worker to do to make it through the night?
Children's sleep problems can affect not only their own wellbeing, but that of their parents. Helping parents manage these problems can also reduce their own risk of depression.
Feeling tired and out of energy? Talk to your GP about checking your iron level.
Nearly 60% of pilots say they know of colleagues who are tired at work.