Professor Richard G. Stevens pioneered the link between electric light at night, circadian disruption and breast cancer. Since this discovery his work has focused on the electric light pollution in modern environments and its influence on our sleep/wake cycle and physiology. Professor Stevens is questioning to what extent circadian disruption compromises human health and accounts for modern pandemics of chronic diseases such as breast and prostate cancers, obesity, diabetes and depression.

Further reading: Stevens RG, Zhu Y. Electric light, particularly at night, disrupts human circadian rhythmicity: is that a problem? Philos Trans R Soc Lond B Biol Sci. 2015 May 5;370(1667).