There are huge discussions around whether heat is even an integral part of light therapy, and what levels of heating should be allowed. Today we break down a 2023 landmark study on this topic.

March brings a surge of new red light therapy developments, from novel wearable devices and Olympic-level use in sport to promising brain research and a wave of fresh articles and reviews shaping the field.

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.