Are we sleepwalking through an important issue?

The clocks have gone back, the days are getting ever shorter and the prospect of another miserable damp and cold winter suddenly becomes a stark reality. It’s not until late March that daylight time finally becomes longer than the time we have to spend in darkness. Although only a minor irritation to some, for many winter has a significant impact upon their health and wellbeing. The reason for this has only relatively recently been understood. As well as enabling us to see, light also has a profound impact upon human physiology. Receptors in the retina of the eye are directly connected t...