"The researchers compared people who were exposed to almost no nighttime light during sleep to people who were exposed to at least 3 lux — lux is a measurement of illumination — which would still be a very dim room, said Kristen Knutson, an associate professor of sleep medicine at Northwestern University’s Feinberg School of Medicine who has no connection to the study."
Framing: assertive ·
First seen: 2026-09-11 ·
Last seen: 2026-09-11 ·
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