I live north of Seattle and I can tell you that every year until this year I've gotten depressed starting around the middle of September as the days get shorter. It's seasonal affective disorder [SAD], and is easily treated with a full spectrum light and melatonin.

I started taking an extremely high quality nascent [ionic] iodine last summer, and have noticed that I didn't developed SAD this year!

The other thing that I think is helping my mood this year is that we've got full spectrum light bulbs in all our lights, and with our elderly dog who is almost blind, keeping them on all day has probably ensured that I am getting the light in my brain I need to keep from becoming depressed.

Here's some links and articles on the subject:

Seasonal Affective Disorders - 2 - SAD, Melatonin, Serotonin - Life Extension Health Concern

Treating Depression Naturally Is Possible ? Clean's The New Black

This is a link to an Ott Light that is a full spectrum light. I have an older version of this that I have on all day for my dog, but I really think it's helping keep my mood stable by getting light into my brain.

https://www.bedbathandbeyond.com/sto...FQ6dfgodcmoBQQ