3 ms·

The reason is because vit-D is a marker of sun exposition but the the important part. Infrared is: https://youtu.be/wadKIiGsDTw https://youtu.be/wadKIiGsDTw T

by alfor 4y ago

The reason is because vit-D is a marker of sun exposition but the the important part. Infrared is: https://youtu.be/wadKIiGsDTw https://youtu.be/wadKIiGsDTw TLDR: get some real sun, if you can’t infrared light.