Hanli Liu, a professor of bioengineering at The University of Texas at Arlington, is working to improve memory and cognitive function in astronauts during space missions by directing light onto their brains.
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/leddevicecou.jpg)
Source:
https://phys.org/news/2019-05-device-memory-retention-astronauts.html