Podcast Summary: Biohack-it with Iman Hasan

Episode: How Inflammation Hijacks Your Fertility | Dr. Natalie Crawford
Date: February 26, 2026
Guests: Dr. Natalie Crawford (Fertility Physician, OB/GYN)
Main Theme:
This episode dives into the under-discussed but crucial role of inflammation, mitochondrial health, and lifestyle factors in fertility, with fertility specialist Dr. Natalie Crawford. Iman Hasan and Dr. Crawford share personal experiences, research insights, and practical strategies for optimizing reproductive health for both women and men. The discussion challenges commonly held medical assumptions and sheds light on empowering, science-backed ways to take control of your fertility, hormones, and long-term health.

1. Dr. Crawford’s Personal Story & Medical Perspective

Timestamps: 00:00 – 07:22

• Dr. Crawford’s dual perspective as a fertility doctor and survivor of infertility and multiple pregnancy losses.
• She describes feeling dismissed and gaslit by the medical system, echoing the common patient experience:
  "I was dismissed by my own doctors. Traumatizing thinking. How can I be a fertility doctor if I can't even get myself pregnant?" (00:00, Dr. Natalie Crawford)
• Discovered that many women, including doctors themselves, weren’t taught crucial skills like cycle tracking
  "If you don't even know what's normal or what you're supposed to do, it's really hard to advocate for yourself." (03:20, Dr. Natalie Crawford)

2. The Role of Inflammation & Mitochondrial Health

Timestamps: 07:22 – 11:06

• Medical training often views inflammation only as a result of disease, not as a precursor. Dr. Crawford’s fellowship research identified inflammation as a root cause of unexplained infertility.
• Mitochondrial health in eggs is overlooked yet vital. Oocytes have the highest mitochondrial density in the body, but most fertility clinics ignore this.
• Challenging the status quo:
  "There's buckets of research showing that mitochondrial function is very important… But we have simplified female fertility to be age." (09:08, Dr. Natalie Crawford)
• Empowering women with science, not fear.

3. Stress, Sleep, and Hormonal Health

Timestamps: 11:06 – 17:09

• Chronic stress triggers insulin resistance, changes ovarian hormone production, and alters hypothalamic signaling, all of which impede fertility.
• Quality sleep is essential for both men and women: "For every hour of sleep that you don't get, we see pregnancy rates go down. We see decreased in men and women, we see sperm count go down." (14:40, Dr. Crawford) "You can function but you’re not functioning well. You’re setting yourself up for a day where you’re already in a deficit. Sleep is when your body heals from inflammation." (15:33, Dr. Crawford)

4. Foundation First: Free Biohacks Before Expensive Add-ons

Timestamps: 17:09 – 21:03

• Focus on sleep, stress management, and movement (muscular activity) before chasing expensive interventions: "The foundation of your day, the number one thing most people are not doing… is focusing on how do we reduce stress, get better sleep, and move our body in a hormonally friendly way." (16:33, Dr. Crawford)
• The importance of building muscle to combat insulin resistance, enhance glucose uptake, and reduce inflammation.
• Practical tools: walk, squats, breathing exercises in stressful moments.
  "If you have these stressful moments, take a couple minutes out, use your muscles—even if you’re just right at your desk, do some squats." (23:16, Dr. Crawford)

5. Diet, Gut Health, and Inflammatory Foods

Timestamps: 21:03 – 28:41

• Fiber is especially important for gut health, hormone production, and inflammation control: "Fiber is what feeds your gut microbiome and it's what's actively going to fight against inflammation." (25:09, Dr. Crawford)
• Anti-inflammatory diet: Emphasize fruits, veggies, legumes; minimize ultra-processed foods, sugars, and poorly sourced meats.
• Most Americans get less than half the recommended fiber; Dr. Crawford recommends 25g minimum per day.
• Consider removing dairy/gluten in cases of unexplained infertility or inflammatory symptoms.

6. Environmental & Behavioral Toxins

Timestamps: 28:41 – 34:09

• Disruptors include forever chemicals (PFCs) in nonstick kitchenware, plastics, water, and air pollution.
• Behavioral toxins: Alcohol, cannabis (especially detrimental to sperm DNA and miscarriage rates), nicotine.
• Importance of controlling male partner behaviors—male fertility has a profound, rapid response to lifestyle shifts within 3 months: "A single change right now can influence things three months from now—we can have a very different sperm count if we make life changes right this second.” (32:26, Dr. Crawford)

7. Cycle Tracking & Fertility Awareness

Timestamps: 34:09 – 44:53

• Cycle tracking is a foundational skill; gives clues before overt dysfunction and enables timely intervention.
• Key fertility signs:
  • Cervical mucus: Egg-white mucus (type 4) signals peak fertility.
  • Ovulation predictor kits (OPK): LH surge precedes ovulation by ~24h.
  • Basal body temperature: Progesterone causes a 0.4°F increase post-ovulation. "Using any method of fertility awareness will get you pregnant faster than using none. And using two has the highest rates of getting pregnant." (41:44, Dr. Crawford)
• Early detection of luteal/follicular phase changes allows for proactive intervention.

8. Challenging Conventional Fertility Approaches & Disclosure Gaps

Timestamps: 44:53 – 47:26

• Egg freezing is not insurance; lifestyle optimization can have more impact.
• Many women aren't told that egg freezing has <5% success per egg frozen.
• Knowledge & advocacy are critical: "The best investment you can make is in you...in your health. Learning to listen to your body, learning to decrease your inflammation and hear your cycle..." (46:53, Dr. Crawford)

9. Male Fertility: The Overlooked Biological Clock

Timestamps: 47:26 – 53:01

• Male fertility declines with age; increased risk of genetic defects, lower pregnancy rates.
• Sperm is easily influenced by environment—cheap, simple sperm banking could be beneficial.
• Mitochondrial DNA in eggs doesn’t age at the same rate as nuclear DNA—focusing on mitochondrial health confers more options for women as they age.

10. Experimental and Future Therapies (Rapamycin & Stem Cells)

Timestamps: 61:00 – 70:52

• Rapamycin: Exciting but early data suggest it may improve egg quality and embryo outcomes, particularly in low-reserve/older IVF patients. "It's changing some of the mechanisms within the cell that can be really optimistic...I think we're going to start to see it as a potential option in IVF cycles..." (64:53, Dr. Crawford)
• Stem Cells/PRP: Still experimental, individual results may vary. Not for everyone, best reserved for select cases.
• Critical to personalize treatment, not chase expensive 'add-ons' before optimizing lifestyle basics.

11. Empowerment, Advocacy, and the Future of Fertility Care

Timestamps: 70:52 – End

• Medical advocacy is a must: Many doctors won’t offer crucial info or full testing proactively.
• "Your health, your hormonal health, your reproductive health, your fertility—it is nobody's journey but your own. You've gotta be a really good advocate for yourself." (71:33, Dr. Crawford)
• Dr. Crawford promotes her podcast, 'As a Woman', and her upcoming book, 'The Fertility Formula', filled with actionable science and lifestyle strategies.

Notable Quotes & Key Takeaways

• “Sleep is when your body heals from inflammation. It’s really important for hormone production.” (15:33, Dr. Crawford)
• “Medicine can be like a cult…thinking outside the box is not valued. We’re living in a time where thinking outside the box is mandatory.” (08:20, Dr. Crawford)
• “Fertility is a team sport. We need both people to come to the table.” (19:23, Dr. Crawford)
• “If you're trying to get pregnant, using any method of fertility awareness will get you pregnant faster than using none.” (41:44, Dr. Crawford)
• “The best investment you can make is in you…in your health, learning to decrease your inflammation and hear your cycle.” (46:53, Dr. Crawford)
• “Your health…is nobody’s journey but your own. And unfortunately, that means you've gotta be a really good advocate for yourself, and that's OK.” (71:33, Dr. Crawford)

Practical Action Steps Highlighted

• Prioritize sleep: 7.5–9 hours/night, consistent schedule, optimize your environment.
• Manage stress: Daily routine for cortisol reduction—outdoor time, meditation, movement, disconnecting from tech.
• Move your muscles: Build and use skeletal muscle to optimize glucose metabolism and reduce inflammation.
• Eat for fertility: High-fiber, plant-forward, minimize processed foods, consider removing inflammatory triggers (e.g., gluten, dairy) if experiencing symptoms.
• Reduce toxins: Replace plastics and nonstick pans; filter your water; be mindful of air quality.
• Mind behavioral toxins: Limit or avoid alcohol, cannabis, and nicotine—esp. in men.
• Track your cycle: Learn fertility awareness signs prior to trying for pregnancy.
• Advocate for yourself: Seek information, get full testing, ask for hormone panels, research your options.

Want More?

• Dr. Natalie Crawford’s podcast: As a Woman
• Book: The Fertility Formula (April release)
• Instagram: @nataliecrawfordmd

This episode empowers listeners to see fertility as a holistic, team-centric, and modifiable process—one that is transformed by knowledge, proactive living, and advocating for oneself in a rapidly evolving medical landscape.