The Hidden Dangers of Indoor Lighting
23 Oct 2025 · 1 min

0:43
The speaker (Ben Greenfield) opens with a personal health narrative: in or around 2015 they experienced severe insomnia, fatigue, and migraines despite lifestyle and medical efforts. Discovering circadian biology (credited to Jack Cruise) and the role of light in controlling sleep, hormones, and energy prompted further investigation and behavioral changes that the speaker credits with resolving their symptoms. The video examines indoor lighting and circadian impacts.
Questions this video answers
Around 2015.
Severe insomnia, constant fatigue, and severe migraines.










