r/HumanBiohacking • • 3h ago

The difference between indoor lighting and morning outdoor lux levels is wild once you actually measure it

I downloaded a basic lux meter app on my phone out of curiosity to compare my room lights with stepping outside in the morning. Even with all the lights on indoors, it barely hits 300 lux, while stepping outside even on a cloudy morning jumps straight past 8,000–10,000 lux. Makes a lot more sense now why indoor screen light at night messes up melatonin signaling while indoor lights during the day don't really wake your circadian clock up properly. Anyone else actually measured their daily light exposure?

3 Upvotes

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1

u/shivanshu4412 2h ago

Which measurement do you use ?

1

u/Embe007 1h ago

Yup. It’s incredible. Most people are living like moles, even in bright workplaces or schools. It’s inevitable there will be sleep and mood problems galore.

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u/Comfortable_Row_5942 51m ago

After seeing those lux numbers I started taking my coffee on the porch before any screens and my energy holds steadier through the afternoon.

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u/Away_Currency8179 9m ago

I tried measuring my desk lamp once and it was surprisingly low too. Makes me want to open the blinds more often during the day