This weeks newsletter covers shining light directly into the bloodstream. We've covered this before and now consider a classical study on the topic.

Here's a mice study showing weight (fat) gain under blue LED lighting, a principle that's VERY counter intuitive to the average human being.

TikTok is more popular than ever in 2026. Here are the latest trends, what to look out for in devices, how to avoid buying a bad product, and much more!

A new 2026 review, analyzing and integrating earlier research, shows that red and near-infrared light can help with trigeminal neuralgia, a horrible pain condition. Here's the latest science on the topic...

New red light therapy products just dropped — including a multicolor hair growth hat, a pet therapy bed with PEMF, a red light shower head, and a new full-body cabin system. In this monthly update, I break down what’s actually interesting, what’s overpriced, and what might be worth your attention.

Here's our 2026 update on celebrities using red light therapy, with some examples!

A new 2025 scientific review updates the state of red and near-infrared light therapy for eye health. Learn how photobiomodulation affects retinal health, mitochondria, and visual function—and what future research says about dosing, wavelengths, and long-term use.