ABOUT THIS EPISODE
In this episode, Marcos and Seamus are joined by Dr. Lauren Colenso-Semple, PhD in Integrative Physiology and Certified Strength & Conditioning Specialist. She's a researcher and science communicator specializing in female physiology, exercise, and nutrition, with extensive hands-on experience helping hundreds of women through every stage of life. Dr. Colenso-Semple co-owns the MASS Research Review, bridging the gap between cutting-edge research and practical strategies for coaches and trainers, and is known for fact-checking fitness and nutrition myths spread by online influencers. Her blend of scientific rigor and real-world coaching experience makes her a go-to voice for evidence-based guidance for women at every life stage.
Time Stamps
0:01 — Intro & guest
1:17 — Lauren's origin story
3:26 — Science vs. anecdote
6:56 — Anecdote vs. literature
12:08 — Hormone fear-mongering
17:45 — Social media clickbait
21:24 — Supplement examples
27:08 — Body composition goals
32:15 — Cycle syncing discussion
37:32 — Knee injuries aside
40:39 — Athlete readiness beliefs
44:45 — Contraceptives & bone density
48:30 — Wearables & heart rate
51:16 — Cortisol fear-mongering
55:44 — Insulin/cortisol parallels
58:38 — Data overload autonomy
62:02 — Coaching with grace
63:51 — Pregnancy training intro
66:29 — Pregnancy research limits
68:42 — Practical pregnancy implications
72:27 — Female life-stage individualization
75:45 — Closing thoughts & outro
You can find The Macro Perspective and its hosts here:
About the Podcast:
The Macro Perspective is hosted by Marcos Rivera and Seamus Sullivan, and was born from a simple but powerful mission: to help people take ownership of their health and lives. As performance health coaches, they've spent their careers empowering clients to think critically, stay curious, and make informed choices—not just in fitness, but in all aspects of life. This podcast is an extension of that mission, bringing insightful conversations that challenge, educate, and inspire.
