Overexposure to artificial light, especially from devices which emit blue light, can suppress melatonin and disrupt the circadian cycle, a new study reports.
The brain's naturally made melatonin contributes to falling and staying asleep.
Researchers report reading an e-book before bed will keep you awake longer than reading a book.
EPFL scientists have proven that light intensity influences our cognitive performance and how alert we feel, and that these positive...
