[RD (OP)]

http://www.theengineer.co.uk/in-depth/analysis/ear-worn-device-ensures-a-bright-disposition/1011928.article

I suspect those who buy this product who only insert one ear-plug will see light shining from the other ear'ole.   []

[Don_1]

They must make you feel light headed.

[imatfaal]

And at 185 quid light walletted as well!

[RD (OP)]

They must make you feel light headed.

 "headlights" is a cooler name than "lug lamps".

If the hypothesis is correct, (light reaches your brain through your skull), then people who wear lightproof headgear (or have one of these [O8)] ) must be more prone to SAD.  [ that may explain why hoodies  are miserable.  [] ]

[Geezer]

They must make you feel light headed.

 "headlights" is a cooler name than "lug lamps".

If the hypothesis is correct, (light reaches your brain through your skull), then people who wear lightproof headgear (or have one of these O8) ) must be more prone to SAD.  [ that may explain why hoodies  are miserable.  ]

I'm sure that's not right. I was always told that if you want to get ahat, get a head.

[Geezer]

I wonder; would it also be beneficial to shine light into other orifices where the sun does not normally shine?

[RD (OP)]

I wonder; would it also be beneficial to shine light into other orifices where the sun does not normally shine?

light in the mouth is a medical test [] ...

"pumpkin positive"    
   
The medical definition of a person with a brain so small that if you shine a light in their mouth, their whole head will light up like a Halloween pumpkin.

http://www.urbandictionary.com/define.php?term=pumpkin%20positive

[Don_1]

I wonder; would it also be beneficial to shine light into other orifices where the sun does not normally shine?

Careful now, you could be arrested for that!

[RD (OP)]

The Valkee earbuds are certified in Europe as a medical device, but veteran sleep researcher Gary Trock, co-director of Sleep Evaluation Services at Beaumont Hospital in Michigan, told MSNBC earlier this week that he remains skeptical given he's seen nothing in peer-reviewed scientific journals about the device: "Until I see more data, I won't be sticking this in my ear."

http://news.cnet.com/8301-27083_3-57398960-247/will-valkees-led-earbuds-alleviate-jet-lag/

[RD (OP)]

Valkee's Lug-Lamps now called "HumanCharger®"... https://rationalwiki.org/wiki/Ear_light_therapy

[evan_au]

The original device does sound rather overpriced for a LED and a battery (even with a stylish Nordic design).

Probably the only real science advance since the original post in 2012 is that it is now widely accepted that an additional type of blue-sensitive photoreceptor (ganglion cells) exist in the eye, and this has been clearly linked to circadian rhythms.

The most obvious impact of this is that many computer systems now offer options like "reduce the proportion of blue in your screen display between 6pm and 6am to improve your sleep patterns".

So if we were recreating this device for 2019, we would use blue light rather than mimic sunlight, and probably inject it via software on the devices that now seem a large part of our lives (including in Finland, one presumes).

See: https://en.wikipedia.org/wiki/Melanopsin

[RD (OP)]

So if we were recreating this device for 2019, we would use blue light rather than mimic sunlight, and probably inject it via software on the devices that now seem a large part of our lives (including in Finland, one presumes).

To replicate all visible sunlight you'd need about >200W/m² ,
so that's >50W of light-output from a laptop screen,
If LED are 50% efficient, (guesstimate) , that's >100W consumption for the screen alone.
batteries will not last long.