Wow! Blue light fends off drowsiness?

Hey, I didn’t know this until just now:  Apparently short-wavelength light — a fancy way of saying “blue light” — helps people stop being drowsy in the middle of the night!  There’s an article about this here — apparently the finding was in the journal Sleep this last February.

From the article:

“Light exposure to this system, particularly blue light, directly reduces sleepiness,” said Steven Lockley of the Brigham and Women’s Hospital. “Subjects exposed to blue light were able to sustain a high level of alertness during the night when people usually feel most sleepy, and these results suggest that light may be a powerful countermeasure for the negative effects of fatigue for people who work at night.”

If you try a blue light, make sure to let me know if it works!

-PD