This infrared gadget claims to improve your mood with lights - I got to the bottom of it
Briefly

This infrared gadget claims to improve your mood with lights - I got to the bottom of it
"Built for desk-based workers and those living in places with long winters, the device conveniently mimics the sun's rays (minus the actual light). The Sunbooster emits this near-infrared (NIR) light through three LEDs. It has a motion sensor to calibrate the right distance before administering the light, as near-infrared light can be harmful if it's too close."
"According to SunLED, it can improve mood and reduce drowsiness. A 2022 study found that NIR light can have beneficial effects on humans in winter. But its findings were skeptical on the efficacy of products like this. '...indoor NIR irradiance from general lighting conditions is at least 100 times lower than direct sunlight. This is likely too low to induce an appreciable biological benefit.'"
People spend approximately 90% of their time indoors, prompting new products designed to replicate outdoor conditions. SunLED introduced the Sunbooster, a $265 device that attaches to laptops and emits near-infrared (NIR) light through three LEDs. Designed for desk-based workers and those in regions with long winters, the device includes a motion sensor for safety calibration and tracks weekly NIR light intake over sessions lasting two to four hours. While SunLED claims NIR light can improve mood and reduce drowsiness, a 2022 study found that indoor NIR irradiance from general lighting is at least 100 times lower than direct sunlight, questioning whether such products provide appreciable biological benefits.
Read at ZDNET
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