Front Page Fitness

Lauren shares that the New York Post contacted her about the viral claim that "women can't do pull-ups," which opens a discussion of the data behind it and the factors that go into training for a pull-up. After a detour into "skeleton news" (the first confirmed death by trebuchet), they turn to the headlines: viral Christian men-only gyms, and the growing trend of health-tracker jewelry like smart rings and earrings. The back half leans into the science stories. They look at a conference abstract on AI photo-based calorie tracking and how well these apps estimate calories from a meal, followed by an extended discussion of a Cell Press review on protein intake, aging, and longevity, and how to interpret research drawn from cells, flies, and rodents. They wrap with listener mail — a hippo-themed follow-up to last episode's carnivore-diet segment, and a question about yoga, flexibility, and the claims that surround it, ending on the backstory of Joseph Pilates.

Join us for a live recording of Front Page Fitness! We're live every Monday at 5:30 pm eastern time.

Front Page Fitness is proudly presented by the MASS Research Review

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Chapters
0:00 Intro & the "women can't do pull-ups" story
6:11 Skeleton news: death by trebuchet
13:27 Christian men-only gyms go viral
20:51 Health-tracker jewelry gets fancy
33:48 Can AI photos count your calories?
44:00 Does less protein slow aging?
1:04:05 Listener mail
1:08:30 Yoga claims based on science and/or tradition
1:15:45 Wrap-up

Lauren is back in the US, which kicks off a tangent about her new (third) phone number and the newest "Dunkers" in the donut/soft drink industry. After that, they get into the headlines of the week. First up is "boy kibble," then a Shake Shack guilt-tipping controversy sparks a full rant about tipping culture creeping onto self-service kiosks and app-dependent businesses. After that, a New York Post piece on returning to the gym earns rare praise, followed by a less praise-worthy headline about active recovery. The back half covers a Huffington Post story on a study linking midlife TV watching to later brain shrinkage — interesting but with plenty of potential confounders and limitations. The top headline is a famous doctor (the same "alpha" physician advising RFK Jr. and JD Vance) claiming that toilet paper becomes unnecessary when you adopt his preferred diet. They close with a listener question about protecting your eyesight through a PhD.

Front Page Fitness is proudly presented by the MASS Research Review

massresearchreview.com

Chapters
0:00 Intro
4:42 Dr. Pepper Dunkers
8:07 "Boy kibble"
12:18 Guilt-tipping and app-dependent businesses
25:13 Returning to the gym the right way
31:04 Active recovery
38:31 Does midlife TV shrink your brain?
44:04 The carnivore diet & the toilet paper claim
52:07 Protecting your eyesight in a PhD

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