Sunlight exposure, even on an overcast day, is beneficial and can be cumulative over time.

“Get it daily especially on overcast days.”

“All still true even through cloud cover. You just need to be outside longer in order to get the proper stimulus.”

“Getting a bit more time than that on an overcast day would be ideal, but if that’s all the time you have, get it! The cool thing is if you get a bit more time the next day it is in many ways cumulative, although not in a purely linear way.”

“You just need to be outside longer. Plenty bright!”

“Get the most you can in the first hour after waking.”

“It’s cumulative so get what you can!”

“The point here is to get the sunlight indirectly. It's going to essentially be scattered everywhere through the cloud cover, but you know from looking at us at a flashlight directly into that flashlight versus looking at the beam that flashlight generates on the ground that if you're standing in the shade, you're going to. get less of that sunlight than you are if you're out in an open field.”