Kayla Barnes: "From Ovarian Age to Longevity Labs: The Real Secrets to Aging Well"
In this episode of In Your Skin, we sit down on the Gold Coast with female longevity and biohacking leader Kayla Barnes for a refreshingly practical tour of what actually moves the needle for women’s health. Kayla explains why she and her husband share labs (yes, even on the first date), how she helped him restore testosterone naturally after coming off TRT, and why she spends big on data so other women don’t have to. We dive into ovarian longevity, biological vs chronological age, the astonishing evidence for sauna, how to structure training for VO₂ max and muscle, and why sleep is the single biggest lever. From mindset and purpose to low-tox beauty swaps, nutrition basics, cold exposure timing, and the reality of doing all this while travelling, Kayla lays out a roadmap that’s evidence-led, female-specific and doable. If you want more energy, clearer skin, better biomarkers and a longer healthspan, this chat will help you start - without the overwhelm.
This episode is proudly sponsored by: Olay. You can shop Olay's Ultra Firming Serum at Chemist Warehouse: https://www.chemistwarehouse.com.au/buy/155007/olay-ultra-firming-serum-30ml
0:00 – Welcome to the Gold Coast studio; Kayla’s first time in Australia & why headlines don’t tell the full story
1:25 – The “labs before our first date” story, meeting on Raya, and a hyperbaric chamber first date
5:05 – Coming off TRT: how Kayla helped her husband lift testosterone to 916 naturally (sleep, gut, toxins, training, cold)
7:02 – Why she spends six figures on longevity—and the 10-ish biomarkers that matter most for women
10:58 – Genetics vs lifestyle: ~10% genes, ~90% epigenetics—what that means for your choices
16:00 – Where to start when you’re burnt out: sleep as the foundation (deep sleep goals, wearables, glymphatic health)
20:30 – Training for longevity: Zone 2, weekly VO₂ max (Norwegian 4×4/4×6), and strength that actually loads bone
22:59 – Grip strength targets (~40 kg for women) and why it predicts overall strength
24:00 – Bone density after 30: heavy compound lifts, vitamin D, minerals, and even jumping
26:56 – Biological age isn’t one number: phenotypic bloods, methylation, VO₂ max, organ-specific clocks
28:28 – Ovarian longevity, the new ovarian age blood test, and early results on rapamycin (VIBRANCE)
34:36 – Fertility plans, egg freezing & trying to conceive while juggling opportunities
46:14 – Lymph drainage: Balancer Pro, rebounding, dry brushing; women’s higher daily toxin load
52:06 – Sauna for longevity: dementia ↓ up to 66%, CVD & all-cause mortality ↓; protocols & practicals
1:02:03 – Nutrition that works: Mediterranean pattern, 100 g protein, micronutrient testing, 50 plants/week
1:07:06 – Living to 150? Longevity escape velocity, AI, and why today’s basics still matter most
1:09:46 – Where to find Kayla and her Female Longevity community
Connect with us on Instagram @inyourskin.podcast
Connect with Christie Whitehill on Instagram @christiewhitehill
Connect with Anna Robards on Instagram @annaheinrich1
Connect with Kayla Barnes on Instagram @kaylabarnes
The content in this In Your Skin podcast is presented solely for general informational, educational, and entertainment purposes. If listeners use the information, it is at their own risk. It is not intended as a substitute for medical advice, or any other qualified professional, diagnosis, or treatment. Every person is unique, and listeners should not disregard or delay in obtaining medical advice for any medical or health condition they may have and should seek the assistance of their healthcare professionals for any such condition.
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