Beware of your electric lights as evenings get longer

Our indoor lifestyles place us at risk of ill-health

This week we passed through the autumnal equinox, and the hours of daylight are shrinking rapidly, and our evenings are lengthening. Not only are we spending less time exposed to natural outdoor daylight, but the hours when we are reliant on electric light in the evening are increasing.

Readers of this newsletter will know that two major determinants of …