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Bright Incandescent Bulb

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Use a bright incandescent bulb as an artificial morning light source, rather than relying on LEDs or other harsher spectra. Keep it at a comfortable distance and avoid staring directly into the bulb. The appeal is its smoother, more solar-like spectrum with more red and orange light, which is described as a gentler way to get early-day light exposure.

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To a first approximation, the spectrum of light that you get from an incandescent light bulb is highly similar to solar light, right? So it covers almost the same range. It's a smooth function.

huberman · Dr. Glen Jeffery: Using Red Light to Improve Your Health & the Harmful Effects of LEDs · Dec 1, 2025 · 1:35:26 · open ↗
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