The healing powers of light

By Helen Albert, Community & Press Editor, Biochemical Society

serotonin-jewels
Serotonin molecule

It’s that time of year again, short days, long nights, all feeling a bit of the ‘winter blues’ before we all head off to rest and recuperate over the Christmas break. We all know that sunlight can be therapeutic and indeed much of the literature suggests that exposure to sunlight triggers the release of the happiness hormone serotonin.

 

It seems that the healing powers of light are much broader than simply making us all feel good about ourselves. Earlier this month Li-Huei Tsai and her colleagues at the Massachusetts Institute of Technology in the US published a paper in Nature that showed that optogenetic techniques could improve symptoms of Alzheimer’s in a mouse model of the disease. Continue reading