Why daylight is the secret to great sleep | Christine Blume

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4.1 • 11.9K Ratings

🗓️ 8 February 2025

⏱️ 11 minutes

🔗️ Recording | iTunes | RSS

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Summary

Does the type and amount of light you’re exposed to during the day change how well you sleep at night? Diving into the effects of daylight on your internal biological clock, sleep scientist Christine Blume shares practical tips for making natural light part of your daily routine — and shows why stepping outside might be the simplest, most impactful change you can make to get better rest.

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1:06.6	You're listening to TED Talks Daily, where we bring you new ideas to spark your curiosity every day.
1:08.2	I'm your host, Elise Hugh.
1:14.2	If you'll allow me to brag real quick, I am very good at getting over jet lag.
1:19.6	I'm a former international correspondent and have to do some cross-time zone travel pretty frequently.
1:28.7	Over the years, I've learned daylight and staying awake at daylight has really helped me in regulating sleep and correcting for jet lag.
1:35.4	And in her talk, sleep scientist Christine Bloom gives us an explainer on why it's so effective,
1:40.2	not just for jet lag, but for sleep quality all year round. Enjoy. On a years of Saturday, you wouldn't find me here.
1:50.6	And I mean, of course, I don't give TEDx talks every Saturday.
1:55.6	But what I mean is you probably wouldn't find me in a museum.
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2:01.8	you'd probably have to go to the mountains.
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