The Science of Periods: What's really going on in your Uterus episode artwork

EPISODE · Sep 10, 2025 · 20 MIN

The Science of Periods: What's really going on in your Uterus

from Making Sense of Pregnancy: What Experts Want you To Know About Your Body · host Paulette Kamenecka

This week we will focus on what in G-ds good name is going on in the uterus during your cycle. I don’t think I’m going too far out on a ledge to say that most of us consider our period an inconvenience at best, but when you hear some of the details of what’s actually going on, you may look at it differently. what’s happening in your uterus each month reads like science fiction–cells following hormone signals with a cult like fervency, multiplying like crazy and transforming into other cell types, building blood vessels on the fly and awakening glands to produce uterine milk. Not only are these cells responding to chemistry, to hormones, but they are also responding to the mechanical signals around them– they feel and respond to the physical pressure of the other cells around them–and it turns out these magic tricks, which, when they are working, can help your body to produce a new human life, and when they aren’t working may significantly contribute to; the risk of miscarriage, the risk of pregnancy complications (endometrial spectrum disorder) and, but also, at the same time, these cells may provide serious prospects for regenerative medicine as a “cure” for some sources of infertility. Here's a link to the episode on implantation: https://podcasts.apple.com/us/podcast/your-placentas-origin-story/id1779600854?i=1000701864045

This week we will focus on what in G-ds good name is going on in the uterus during your cycle. I don’t think I’m going too far out on a ledge to say that most of us consider our period an inconvenience at best, but when you hear some of the details of what’s actually going on, you may look at it differently. what’s happening in your uterus each month reads like science fiction–cells following hormone signals with a cult like fervency, multiplying like crazy and transforming into other cell ty...

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The Science of Periods: What's really going on in your Uterus

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This episode was published on September 10, 2025.

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This week we will focus on what in G-ds good name is going on in the uterus during your cycle. I don’t think I’m going too far out on a ledge to say that most of us consider our period an inconvenience at best, but when you hear some of the details...

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