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    Privacy˙Terms˙
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    blue light

    US

    ・

    UK

    A1
    n.NounThe high-energy portion of the visible light spectrum, typically emitted by electronic devices.
    Exposure to blue light from screens can disrupt sleep patterns.
    n.NounA form of phototherapy using blue light to treat certain skin conditions or mood disorders.
    Blue light therapy is sometimes used to treat seasonal affective disorder.

    Video subtitles

    How screens actually affect your sleep

    06:39How screens actually affect your sleep
    • The phone's artificial daylight, aka blue light, suppresses the production of melatonin, disrupting our feelings of sleepiness.

      The phone's artificial daylight, aka blue light, suppresses the production of melatonin, disrupting our feelings of sleepiness.

    • Now, you might be wondering, don't phones have a built-in feature that's intended to counteract this blue light?

      Now, you might be wondering, don't phones have a built-in feature that's intended to counteract this blue light?

    B1

    Shipwreck Diving Adventure in Southern Taiwan | Let’s Go Diving!

    12:01Shipwreck Diving Adventure in Southern Taiwan | Let’s Go Diving!
    • Divers enjoy exploring the ship's cabins, where in the dimly lit passageways, the deep blue light filters in through the windows, creating a dreamlike and surreal atmosphere.

      Divers enjoy exploring the ship's cabins, where in the dimly lit passageways, the deep blue light filters in through the windows, creating a dreamlike and surreal atmosphere.

    • Divers enjoy exploring the ship's cabins where in the dimly lit passageways, the deep blue light filters in through the windows, creating a dreamlike and surreal atmosphere.

      Divers enjoy exploring the ship's cabins where in the dimly lit passageways, the deep blue light filters in through the windows, creating a dreamlike and surreal atmosphere.

    B1

    The Color Temperature Paradox

    04:22The Color Temperature Paradox
    • If you tell your camera to color balance for a very blue 10,000 Kelvin source, it will be expecting very blue light, and therefore decrease the amount of blue in the image.

      If you tell your camera to color balance for a very blue 10,000 Kelvin source, it will be expecting very blue light, and therefore decrease the amount of blue in the image.

    • If you tell your camera to color balance for a very blue 10000 Kelvin source, it will be expecting very blue light and therefore decrease the amount of blue in the image.

      If you tell your camera to color balance for a very blue 10000 Kelvin source, it will be expecting very blue light and therefore decrease the amount of blue in the image.

    B1

    皮膚科医だけど質問ある?【PART2】 | Tech Support | WIRED Japan

    16:41皮膚科医だけど質問ある?【PART2】 | Tech Support | WIRED Japan
    • When you look at what blue light does to the skin, it actually has anti-inflammatory and antibacterial properties of the skin.

      When you look at what blue light does to the skin, it actually has anti-inflammatory and antibacterial properties of the skin.

    • When you look at what blue light does to the skin, it actually has anti-inflammatory and antibacterial properties of the skin.

      When you look at what blue light does to the skin, it actually has anti-inflammatory and antibacterial properties of the skin.

    B1

    How to Wake Up at 4am Everyday: 4 Practical, Non-Hacky Ways

    13:10How to Wake Up at 4am Everyday: 4 Practical, Non-Hacky Ways
    • The thing with mobile—mobile devices and laptop screens is that they emit a lot of blue light, which is something that will wake you up a lot and will mess your circ—nan, will mess up your circadian clock.

      The thing with mobile—mobile devices and laptop screens is that they emit a lot of blue light, which is something that will wake you up a lot and will mess your circ—nan, will mess up your circadian clock.

    • they emit a lot of blue light

      they emit a lot of blue light

    A2

    Why is the Sky Blue? | Don't Memorise

    04:15Why is the Sky Blue? | Don't Memorise
    • It is true that the sky scatters the violet light more than the blue light.

      It is true that the sky scatters the violet light more than the blue light.

    • It is true that the sky scatters the violet light more than the blue light.

      It is true that the sky scatters the violet light more than the blue light.

    B2

    Is make up aggressive? Studies on pretty privilege

    03:01Is make up aggressive? Studies on pretty privilege
    • Again, this is basically looking in a mirror, you just threw on blue light glasses and did your hair kind of different.

      Again, this is basically looking in a mirror, you just threw on blue light glasses and did your hair kind of different.

    • You just threw on blue light glasses and did your hair kind of different.

      You just threw on blue light glasses and did your hair kind of different.

    B2

    10 HABITS FOR (ALMOST) LIMITLESS ENERGY

    49:5610 HABITS FOR (ALMOST) LIMITLESS ENERGY
    • LED can emit a lot of blue light and create what's called flicker stress.

      LED can emit a lot of blue light and create what's called flicker stress.

    • The blue light from the phone, that is a no-no.

      The blue light from the phone, that is a no-no.

    B1

    What Your Sleep Habits Reveal About You?

    09:16What Your Sleep Habits Reveal About You?
    • Phones and laptops glow with blue light, which can delay melatonin and confuse your body clock.

      Phones and laptops glow with blue light, which can delay melatonin and confuse your body clock.

    • Phones and laptops glow with blue light, which can delay melatonin and confuse your body clock.

      Phones and laptops glow with blue light, which can delay melatonin and confuse your body clock.

    B1

    This is EMBARRASSING for Google - iPhone Air

    15:39This is EMBARRASSING for Google  - iPhone Air
    • But like at night, when I'm going to bed, forget, like reduce blue light mode or whatever.

      But like at night, when I'm going to bed, forget, like reduce blue light mode or whatever.

    • to bed, forget like reduced blue light mode

      to bed, forget like reduced blue light mode

    B1