This is amazing data! Great work! I'm curious, I had purchased the Luminette Glasses a few years ago when I first listened to Huberman. Do you have any data or opinions on how good they are? Specifically these ones: https://www.amazon.com/gp/product/B07VMRRB9Y/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 More on reddit.com

I will say, I have a grow light next to my desk that is on all day when I'm WFH and I feel like it's made a difference. But it also might be a combination of seeing happy plants and consistent bright light for 8ish hours a day. More on reddit.com

I suffer from SAD every year, but I'm also clinically depressed- its not just a winter thing. I have a lamp that I use daily. I notice a definite change in my attitude and outlook, but I'm not sure how much is placebo or my anti-depressants.

I can say, that whatever the reason, when I don't use the lamp I get hit significantly harder by the depression. It also helps me sleep better regardless of how I feel (our brains need a certain amount of daylight every day so it knows when to sleep too).

I have some friends that use them. The opinions vary.

One piece of advice: you get what you pay for. There are some cheaper options out there, but I would suggest paying top dollar if you really want it to work.

Edit: I just clicked on the one you were thinking about. It looks like a fairly decent one. Definitely an investment, but it should be good quality to last a long time. I use this one: I'm good quality and I use negative ion therapy

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Ah, something I'm unfortunately an expert at! Skip to point 3 if you just want to read about the light, I'm pasting in something I wrote on a different thread. I have suffered from really dramatic SAD for years (Minnesota) and have finally got a handle on it. For me, it revolves around 3 categories: Exercise, Vitamin D, and Light. Especially blue light. Also, I didn't realize until I started really digging into it how poorly researched SAD is. . . Exercise: The "easiest" one. Getting your heart rate up once a day appears to be very effective in combating depression generally, and seasonal depression specifically. Being a ginormous nerd, I bought a smart trainer to strap my bike into, and cycle fast for 30 minutes every morning through virtual lava fields in Zwift. https://zwift.com/ It definitely seems to help, and I'm no longer 'foggy' in the morning, but I'm still having issues fitting it into my schedule. . . it probably takes 45 minutes more in the morning, total, to fit this in. . . Vitamin D: My entire family is known to be chronically deficient in Vitamin D, so I supplemented with the suggested dose of 2,000 IU a day for the last year. While getting a blood-test for an unrelated reason, I asked if the doctor could also check my Vitamin D levels, and they were hysterically low, ~14 nmol/L. Normal levels are around 85, and anything below 30 is deficient. With this new knowledge I started dosing with 25,000 iu a day, and noticed an immediate improvement in my mood. I've considered really cranking this up as there seems to be no documented negatives from too much vitamin D (if you drink adequate water, at least) but 25K seems to be working for me. Light: The tricky one. . . I had a standard "10,000 Lux!" light box that was a hand-me-down from someone who hadn't found it effective. . . I didn't find it effective either. Some research showed that these were only rated at 10,000 lux when you were 8 inches from the light and looking at it. That's not going to happen. This model made no difference at all. Looking around for a DIY solution with many more lumens, I ran across this blog: https://meaningness.com/metablog/sad-light-lumens and https://meaningness.com/metablog/sad-light-led-lux This seemed like a good way to go: find the maximum lumens per dollar possible and spend what I could justify. Out came the spreadsheet, and at 183 lumens per dollar, this LED floodlight won the prize: https://www.amazon.com/gp/product/B01KFVFQFW . I was thinking of getting 2 or 3, but I've only gotten one so far as a trial. It is SO BRIGHT. I'm intending to mount this over my bike trainer to get a blast of light while exercising. . . Blue light is king, apparently. . . a fairly narrow band of blue (Lower than 540nm) controls the circadian rhythm. In an effort to get enough of the blue wavelength, I tried having a very bright white light at my desk at work. This was ridiculously over-bright, led to a lot of eye-strain, and seemed to have only nominal effectiveness. To try to deal with the 'blue issue' I was going to do two things: Wear blue-blocking glasses every night starting 90 minutes before bed. Richard actually got me turned on to these, and they seem to work really well: https://www.amazon.com/Uvex-Blocking-Computer-SCT-Orange-S1933X/dp/B000USRG90 Wire up some LED's in the specific blue wavelength to use at my desk at work. However, I happened to find an (overly expensive) ready to go solution to this from Phillips: https://www.amazon.com/gp/product/B00M3SGCUE This sits on my desk just below my monitor and beams JUST blue light into my face, within my field of vision. I can comfortably have this on for several hours in the morning, and it seems to make a huge difference. I think. The light and the glasses seem to agree, as wearing the glasses makes the light very nearly disappear. . . TL;DR: Use a LOT of blue light in the morning, block blue light late at night. More on reddit.com