Why do many Indian customers ask us whether this lamp can produce vitamin D when they ask us for SAD lamp? ?I guess, this part of customers may not understand the confusion caused by the principle of SAD lamp.As I mentioned in the previous article, many patients with SAD symptoms are deficient in vitamin D, but this only shows that adequate vitamin D supplementation is helpful for relieving SAD, and does not mean that the purpose of using SAD lamps is to supplement vitamin D.

In the previous section, I have explained that the SAD lamp is just a full-spectrum LED lamp, Not a specific spectrum light such as UV light of a fixed wavelength.It only plays the role of simulating sunlight, the purpose is to stimulate people's eyeballs, so as to make the human brain misjudge signals in sunlight to secrete Brain chemical,Does not directly touch and affect skin cells.Therefore, SAD lamp can not directly act on human cells, let alone make the human body produce vitamin D. Wouldn't it be quicker to go to the pharmacy and buy a bottle if you need a vitamin D supplement? ?

What you buy is just a led daylight lamp that can emit 2000-10000lux illumination, that's all. If used incorrectly, SAD symptoms will not improve.

In the next issue, I will talk about several major factors that affect the performance of SAD, please pay attention.