Rats Against LEDs

...studies showing the adverse effects of exposure to light at night - particularly short wavelength blue LED - in the blind mole rat and in seeing rats, both of which showed varying levels of damage to their metabolic rates, hormone production, body mass, and oxygen consumption following exposure to LAN, as well as suppressed levels of  melatonin production, which is responsible for tumor growth.

Read more about the Israeli study at NewsMedical.Net