The impact of blue light on sleep quality

Blue wavelengths suppress melatonin, the hormone that signals bedtime. Evening screen use can delay sleep onset and reduce deep sleep.

Practical fixes

Dim screens an hour before bed, use night mode, keep phones out of the bedroom and get bright daylight in the morning to anchor your rhythm.

Considering melatonin or a sleep aid? Doses and timing matter, and some interact with other medications. Talk to our pharmacists first.