Use code HOLIDAYSALE FOR 25% OFF ALL MY COURSES through November 30th - (link to courses - https://sarah-kleiner.mykajabi.com/store 

My episode on managing shorter days and longer nights - https://spotifyanchor-web.app.link/e/I0mIzW273ub 

My shorter days and longer nights resource guide - https://sarah-kleiner.mykajabi.com/pl/2147633082 

Amber clip on light - https://amzn.to/3AqIM6Q 

Morozko Forge cold plunge - (discount code SARAH) - https://www.morozkoforge.com/product-page/filtered-forge-cold-tub 

EMRTEK RED LIGHT - CODE SARAH25 for 25% off - https://emr-tek.com/discount/carnivoreyogi20 

Biolight ebook - https://www.biolight.shop?ref=sarahkleiner2 

Podcast with Dr. Mike Belkowski about red light therapy - https://spotifyanchor-web.app.link/e/FNrMRvy83ub 

Studies on each topic:

Circadian rhythms - https://pubmed.ncbi.nlm.nih.gov/32066704/ https://www.health.harvard.edu/blog/why-your-sleep-and-wake-cycles-affect-your-mood-2020051319792 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3202489/ https://www.sciencedaily.com/releases/2022/09/220901200635.htm 

Artificial light at night -https://www.sciencedirect.com/science/article/abs/pii/S0048969722022781 https://www.nature.com/articles/mp201370 https://academic.oup.com/aje/article/187/3/427/4056592 https://www.sciencedirect.com/science/article/pii/S0092867418310201 https://brainawareness.utk.edu/nelson/ 

Keto - DR. CHRIS PALMER BRAIN ENERGY book - https://amzn.to/3OhgfGJ - link to Dr. Palmer’s studies on Pubmed - https://www.chrispalmermd.com/articles/ My episode with Dr. Palmer - https://spotifyanchor-web.app.link/e/Efr1xV273ub 

Cold therapy - https://pubmed.ncbi.nlm.nih.gov/17993252/ https://onlinelibrary.wiley.com/doi/full/10.1002/lim2.53 https://www.cambridge.org/core/journals/european-psychiatry/article/cold-water-swimming-as-an-addon-treatment-for-depression-a-feasibility-study/CD86E4E618DD6DB33038921C88D96C10 More on why to works - https://icebarrel.com/blog/how-does-cold-therapy-work-for-depression/ 

Red light therapy: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2796659/ https://pubmed.ncbi.nlm.nih.gov/26535475/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4556873/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5007141/ https://pubmed.ncbi.nlm.nih.gov/26989758/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5627142/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7864111/ https://www.researchgate.net/publication/324100759_Long-Term_Near-Infrared_Photobiomodulation_for_Anxious_Depression_Complicated_by_Takotsubo_Cardiomyopathy