Sleep, Circadian Rhythm, and Hormones

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Dr. Gabrielle Lyon sits down with fertility specialist Dr. Natalie Crawford to tackle the urgent rise in infertility across both men and women. Dr. Crawford, an advocate for proactive reproductive health, reveals why inflammation is hijacking your fertility and why the old dogma that "age is the only factor" for egg quality is dangerously incomplete.

They cover critical, actionable steps—from the most important lifestyle changes you can make before IVF, to the toxic habits that are directly lowering sperm counts and causing miscarriages. Learn the three essential fertility awareness methods (FAMs) and what your doctor is missing when they check your thyroid.

Who is Natalie Crawford:

Natalie Crawford is a double board-certified fertility doctor with a nutrition background, here to help you understand your body and hormones, optimize your lifestyle, and take control of your reproductive future with confidence.

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The Dr. Gabrielle Lyon Podcast and YouTube are for general information purposes only and do not constitute the practice of medicine, nursing, or other professional health care services, including the giving of medical advice, and no doctor/patient relationship is formed. The use of information on this podcast, YouTube, or materials linked from this podcast or YouTube is at the user's own risk. The content of this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they may have and should seek the assistance of their health care professional for any such conditions.

Timestamps: 

0:00 - Inflammation is Hijacking Your Fertility 

2:00 - The Infertility Crisis: 1 in 5 Couples Struggle 

3:41 - Male vs. Female: Who is Becoming More Infertile? 

4:03 - Sperm Counts Down 50% & The Rise of Premature Menopause 

4:57 - The #1 Cause of Infertility: Chronic Inflammation 

6:08 - Egg Quality: You CAN Influence Your Mitochondrial Health 

8:18 - The 5 Pillars of Fertility: Sleep, Stress, Muscle, Diet, Toxins 

8:53 - The Foundation: Why Sleep is Non-Negotiable for Hormones 

11:13 - Fertility is a Team Sport: Why Sleep Impacts Men More Quickly 

12:55 - How Much Sleep Do You Need? (Circadian Rhythm is Crucial) 

15:19 - Supplements and Herbs: The Danger of Chaste Tree Berry (Vitex) 

18:38 - The Problem with Glandular & Adrenal Support Supplements 

22:31 - Alcohol and Cannabis: Why They are Profoundly Inflammatory 

24:49 - Miscarriage Risk: Male Cannabis Use & Uterine Septum 

25:57 - Autoimmune Disease: Celiac, Thyroid, and Miscarriage 

28:03 - Celiac Disease: Treating the Root Cause of Inflammation 

29:32 - The Fellow's Journey: Why Dr. Crawford Studied Natural Fertility 

33:24 - The 12-Month Prep Plan: Screening for Autoimmunity (Thyroid/Celiac) 

34:07 - Hashimoto's & Thyroid: Why Your TSH Range is Misleading 

37:34 - Period Problems: When a "Regular" Cycle Isn't Ovulating Optimally 

40:27 - Thyroid Treatment: Synthetic vs. Animal-Derived Hormones 

44:09 - Environmental Toxins: Their Huge Role in Fertility & Ovarian Reserve 

46:09 - Where to Start: Water, Air Filters, and Non-Teflon Cookware 

48:54 - Toxins: Stainless Steel, Glass, and Avoiding Hot Plastic 

50:45 - Processed Foods and Takeout: The Danger of Packaging 

54:24 - Sex for Conception: How Much is Enough? (No Need to Abstain) 

56:41 - Use It or Lose It: Why the Vagina Can Atrophy 

57:56 - The 3 Fertility Awareness Methods (FAMs) to Track Ovulation 

1:00:59 - Basil Body Temperature & Wearable Tech for Ovulation