Front Page Fitness

Lauren interviews Eric about his research on metabolism and energy expenditure. He describes turning down a tenure-track job to move into science communication and then evolutionary anthropology, studying how humans regulate their energy budget. He explains why people get metabolism wrong in both directions — treating it as mysterious and stretching the real person-to-person variation to impossible extremes — and walks through metabolic adaptation, why reverse dieting usually backfires, and the evolutionary logic of the body's "low-power mode." They get into why resting metabolic rate doesn't crater at menopause (the real changes from 20 to 60 are mostly behavioral), how non-exercise activity works and its limits, and what hunter-gatherer and subsistence populations reveal as a kind of "control group" for modern health. He closes with simple public-health advice — sell people on physical activity, find a sustainable calorie-appropriate eating pattern, get enough fiber from whole food sources — and discusses the ongoing debate over the constrained energy expenditure model.

Front Page Fitness is proudly presented by the MASS Research Review

massresearchreview.com

Chapters
0:00 From supplements to energy expenditure
7:56 What everyone gets wrong about metabolism
10:12 Metabolic adaptation & reverse dieting
14:13 The evolutionary logic of the energy budget
16:19 Evolutionary head-scratchers
18:25 Metabolism, sex differences & aging
22:35 Non-exercise activity & step counts
28:19 What hunter-gatherers teach us
31:04 The simple public-health message
35:14 The constrained energy model debate
38:26 Wrap-up

A special interview episode: Trexler interviews Lauren about her research at the intersection of exercise, muscle physiology, and women. She explains how she backed into menstrual-cycle research after realizing it was a perceived barrier keeping labs from studying women at all, and why her finding that cycle phase doesn't much affect training adaptations should have opened the door to more research — before the internet "slapped her in the face." They cover which sex differences actually deserve attention (menstrual symptoms, PCOS, endometriosis, pregnancy, postpartum, menopause) versus the over-complication that markets special protocols off single-hormone claims. The heart of the episode is three practical questions — how to train around your menstrual cycle, how to think about hormonal contraceptives, and what to actually do at menopause — with the same nuanced answer each time: track your own response, adjust reactively rather than proactively, and match the tool to the goal.

Front Page Fitness is proudly presented by the MASS Research Review

massresearchreview.com

Chapters
0:00 Why study exercise & women's physiology?
9:12 Which sex differences actually matter
12:28 The single-hormone trap
19:49 When bone & DEXA expectations mislead
22:16 Actionable Guidance: training & your menstrual cycle
26:36 Actionable Guidance: hormonal contraceptives
30:39 Actionable Guidance: menopause
35:04 Wrap-up

The last "normal," headline-focused episode before Trexler travels. After the usual Mountain Dew mail — a Baja Blast TikTok and a sticky Australian Mountain Dew candy — they dig into three stories. First, a CNN piece calling strength training a "secret weapon" for women's heart health; they agree the underlying study is solid but the real takeaway is combining resistance training, aerobic activity, and less sedentary time, not any single magic bullet. Second, the push to tax or label ultra-processed foods, where they worry vague definitions and poor categorization could slap warnings on healthy foods like Greek yogurt, and unpack why "food addiction" is more nuanced than headlines suggest. Finally, a NYC "wellness clinic" that rewards healthy habits with perks like Botox and facials, prompting a mixed-bag take on concierge medicine and pay-to-play healthcare.

Front Page Fitness is proudly presented by the MASS Research Review

massresearchreview.com

Chapters
0:00 Intro & Mountain Dew mail
8:34 Is strength training a heart-health "secret weapon"?
14:50 Should we tax or label ultra-processed food?
26:08 Is food really "addictive"?
30:44 The complexity of eating behavior
37:00 Botox-for-checkups: the NYC wellness clinic
48:05 Goldfish redemption & wrap-up

Dr. Eric Trexler and Dr. Lauren Colenso-Semple run through the week's health and fitness headlines, starting with Lauren's suspicion that her landlord is poisoning her — and that landlord's confident counter-diagnosis that she's pregnant. The stories: a Huffington Post piece arguing novelty, not more routine, is what's missing from your life; the booming world of "Fido hacking," where owners buy dogs red light beds and AI collars; and research suggesting modern parents' sleep problem is more about perceived quality than actual lost hours. The two fitness segments both push back on sex-specific advice. On the viral claim that women are "squatting wrong," they argue stance comes down to limb proportions and hip anatomy, not sex. On the claim that caffeine hits women differently, they note that body size relative to a flat dose explains far more than estrogen does. They close with Monster-brand pasta and a warning that the show may take a short break due to travel schedules.

Front Page Fitness is proudly presented by the MASS Research Review

massresearchreview.com

Chapters
0:00 Intro - Is Lauren's landlord poisoning her?
11:09 The one thing missing from your life
17:55 "Fido hacking": $800 red light for dogs
25:10 Are modern parents really sleep-deprived?
35:42 Are women squatting wrong?
48:26 Does caffeine hit women differently?
1:03:12 Monster pasta
1:07:34 Reddit drama & firing your therapist

In this episode, Eric and Lauren work through a batch of health-and-wellness headlines with their usual skepticism, covering viral "heatwave hacks" (damp sheets, yogurt on windows), a study claiming gossip is "good for you," a doomsday-prepping wellness trend, a face-scanning "longevity mirror" they technically invented, and whether biological-age tests and the famous "blue zones" hold up. Plenty of tangents along the way, including Homo naledi, reality dating shows, and Eric's inability to stay awake during interesting documentaries.

Join us for a live recording of Front Page Fitness on Mondays at 5:30 pm eastern time!

Front Page Fitness is proudly presented by the MASS Research Review

massresearchreview.com

Chapters
0:00 – Intro
6:35 – Heatwave "hacks"
22:45 – Gossiping is good for you?
26:19 – Tangent: Homo naledi documentary
32:28 – Reality TV
41:51 – The "future of wellness": doomsday prepping meets fitness
49:23 – The "longevity mirror" that scans your face
57:11 – Are biological-age tests actually legit?
1:05:56 – Blue zones: longevity secret or pension fraud?
1:13:06 – Wrap-up