10.25.18
Mouse and human skin cells produce melanin on a 48-hour cycle
![](https://healthproblemsnews.com/wp-content/uploads/sites/5/2018/10/cfarmafotoskin-150x150.jpg)
Researchers have discovered that mouse skin and skin cells from humans produce pigmentation in response to sunlight on a 48-hour cycle. They observed that exposing skin to ultraviolet light every 2 days yielded darker pigmentation with less radiation damage than daily exposure. The findings appear October 25 in the journal Molecular Cell. “The damaging effects