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Gary Rhodes of Screen My Bones gets practical in Part 2: which bone scans are available, what they measure, and how often to retest. He explains the science behind osteogenic loading and BioDensity — a technology that builds bone safely even in people with severe osteoporosis — and covers what someone with no gym access can do. The episode also covers the specific nutrition that supports bone density, including the calcium-K2 relationship that most people get wrong.

Key topics:
DEXA scan: T-score, Z-score, fragility score, TBS, radiation, inaccuracy rate
EchoLight (REMS ultrasound): bone density + quality, no radiation, 5-year risk window
Why the TBS function on DEXA machines is rarely used — and why it matters
Retest frequency: every 12 months recommended vs NHS 3-year standard
BioDensity and osteogenic loading: the science, the safety, Wolff's Law
Power Plate (whole-body vibration) and the Rev Bike (vibration + VO2 max)
Impact vs loading: what each does for bone and whether you need both
Zero-budget bone-building: running, hopping, jumping, heavy lifting
Why cyclists, swimmers, and rowers have unexpectedly poor bone density
EMS (electro-muscular stimulation): role and limitations
Results: bone quality and T-score changes in 6 and 18 months
Nutrition: whole foods, protein, absorption, eating in parasympathetic state
Specific nutrients: D3 + K2/MK-7, magnesium, collagen, boron, Omega-3
Calcium supplementation: why it can cause harm without K2 and exercise
Protein and bone: the muscle-bone connection

References and resources mentioned:
EchoLight / REMS ultrasound technology
BioDensity — Performance Health Systems
Power Plate — Performance Health Systems
Rev Bike — Performance Health Systems
eGym (variable resistance training technology)
Dr Vonda Wright — Unbreakable
Dr Gabrielle Lyon — creatine research
Wolff's Law (foundational bone remodelling principle — medical school curriculum)

Guest social links:
Website: screenmybones.com
Instagram (Gary Rhodes): https://www.instagram.com/garyandrewrhodes/
Instagram (Screen My Bones): https://www.instagram.com/screenmybones?igsh=MWY0ZWc1OWY1OGhubw==
Instagram (Screen My Bones US): https://www.instagram.com/screenmybones.us/
Instagram (Performance Health MSK): https://www.instagram.com/performancehealthsystemsmsk/
Facebook (Screen My Bones): https://www.facebook.com/profile.php?id=61566125690406
Facebook (Performance Health MSK): https://web.facebook.com/PerformanceHealthSystemsMSK

Insta/TikTok: @BiohackingEve
Website: www.BiohackingEve.com

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Gary Rhodes, founder of Screen My Bones, opens a three-part deep dive into the most overlooked pillar of women's longevity: skeletal health. Part 1 covers what osteoporosis and osteopenia actually are, why bone loss in women accelerates so dramatically at menopause, and the hidden risks from GLP-1 weight loss drugs, chronic stress, and emotional trauma. Gary reversed his own grandmother's severe osteoporosis in 23 months — and has since scanned over 20,000 people to build the evidence base for early, proactive bone screening.

Key topics:
Reversing osteoporosis: Gary's grandmother's story (T-score minus 2.7 → normal range in 23 months)
What osteoporosis is — and why "disease" is the wrong framing
Bone density vs bone quality — two distinct measurements, both essential
T-scores, Z-scores, fragility scores: what to pay attention to
The menopause bone cliff: 1–5% loss per year, up to 20% over 5–7 years
Why women lose bone faster than men (oestrogen mechanism)
Osteoporosis prevalence: 19.6% in women vs 4.4% in men over 50
Peak bone mass at 28–32 and the case for screening in your thirties
GLP-1 drugs (Ozempic, Mounjaro) and the 40% muscle/bone loss risk
Osteoimmunology: bone marrow as immune factory; inflammatory cytokines and bone resorption
Cortisol, adrenal stress and mineral depletion from bone
Emotional trauma as a bone health risk factor

References and resources mentioned:
Screen My Bones: screenmybones.com
Tony Robbins — Unleash the Power Within (UPW): https://www.tonyrobbins.com/events/unleash-the-power-within
Dr Gabrielle Lyon — creatine and muscle protein research

Guest social links:
Website: screenmybones.com
Instagram (Gary Rhodes): https://www.instagram.com/garyandrewrhodes/
Instagram (Screen My Bones): https://www.instagram.com/screenmybones?igsh=MWY0ZWc1OWY1OGhubw==
Instagram (Screen My Bones US): https://www.instagram.com/screenmybones.us/
Instagram (Performance Health MSK): https://www.instagram.com/performancehealthsystemsmsk/
Facebook (Screen My Bones): https://www.facebook.com/profile.php?id=61566125690406
Facebook (Performance Health MSK): https://web.facebook.com/PerformanceHealthSystemsMSK

Insta/TikTok: @BiohackingEve
Website: www.BiohackingEve.com

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In Part 2, materials engineer Shagun Maheshwari unpacks what conventional menstrual pads are actually made of — up to 90% plastic — and what that means for the body and the environment. Phthalates, microplastics, greenwashing, and why she designed Papaya to degrade in a landfill, not just a composter.

Key topics in this part:
- Why conventional pads can be up to 90% plastic; heat-bonding and textile engineering
- Adhesives as a still-unsolved sustainability problem
- Phthalates and VOCs; endocrine disruption and absorbent vulvovaginal tissue
- Why fragrance can worsen period odour rather than mask it
- Antimicrobial properties and the delicate vaginal microbiome balance
- Microplastics vs nanoplastics, and how they reach tissue
- Why plastic doesn't biodegrade; what genuine biodegradability requires
- Greenwashing: "biodegradable top sheet," bamboo/cotton pads that still contain SAP, the label test
- Industrial composter vs landfill degradation standards
- Lifetime product volume (≈5,000–15,000 products); ~800-year SAP degradation
- Where to find Papaya; what's next for the product
- The case for putting people who experience the problem on the technical design team

Timestamps:
00:00 — Hookable intro
00:42 — Biohacking Eve intro
01:07 — Recap of Part 1
01:27 — Episode summary
02:27 — Conversation resumes: plastics in pads
08:00 — Endocrine disruptors, fragrance, microbiome
16:00 — Microplastics and how they reach tissue
22:00 — Why plastic doesn't biodegrade; greenwashing and the label test
28:00 — Composter vs landfill; lifetime volume
33:00 — Where to find Papaya
34:00 — Curveball questions
40:00 — Close → outro

References mentioned in this part:
- Super absorbent polymer / sodium polyacrylate (SAP); polyacrylate, polypropylene, polyurethane
- Phthalates; volatile organic compounds (VOCs)
- Industrial composting vs landfill degradation standards (≈90% in six months)
- Strange Pictures by Uketsu — Japanese mystery novel
- Agatha Christie; P.G. Wodehouse (Jeeves and Wooster); Joseph Campbell (the hero's journey)

Guest & product links:
Website: papayapads.com
Instagram: @papaya.india and @shagun.maheshwari
LinkedIn (Shagun): https://www.linkedin.com/in/maheshwarishagun/
LinkedIn (company): https://www.linkedin.com/company/papayaindia/
Pilots in other countries: bulk orders only — contact Shagun directly

Insta/TikTok: @BiohackingEve
Website: www.BiohackingEve.com