The traditional 9-5 work day is becoming a thing of the past. Companies are international now and people have to work with other time zones, meaning late night conference calls or early morning Skype meetings. Shift work is also becoming much more common and people are working more during the hours where our bodies expect us to sleep. Some night workers may find it easy to get into the habit of shift work but for others it can be a little too much. Shift work sleep disorder (SWSD) is a very real issue for many.
Advanced though we are a big part of us is that primal hunter gatherer. Our brains are pre-programmed to desire sleep after a certain time in the evening. When it gets dark we get tired. Shift work goes directly against this and can lead to a great deal of lost sleep. When you’ve stopped work and you need to sleep you might find you simply can’t, as your body struggles to adapt. Conversely, while you’re actually at work you might have issues staying awake!
If this is an issue you recognise then it might be time to see your doctor! There are a variety of things that they can suggest for you.