Lisa Hendrickson-Jack is a certified Fertility Awareness Educator and Holistic Reproductive Health Practitioner who teaches women to chart their menstrual cycles for natural birth control, conception, and monitoring overall health. She is the author of three bestselling books The Fifth Vital Sign, the Fertility Awareness Mastery Charting Workbook, and her most recent book Real Food For Fertility, which she co-authored with Lily Nichols RDN. Lisa works tirelessly to debunk the myth that regular ovulation is only important when you want children by recognizing the menstrual cycle as a vital sign. Drawing heavily from the current scientific literature, Lisa presents an evidence-based approach to help women connect to their fifth vital sign by uncovering the connection between the menstrual cycle, fertility, and overall health. With well over 4 million downloads, her podcast, Fertility Friday, is the #1 source for information about fertility awareness and menstrual cycle health.   Fertility Friday: fertilityfriday.com Real Food For Fertility: realfoodforfertility.com The Fifth Vital Sign: thefifthvitalsignbook.com Instagram: @FertilityFriday Facebook: Facebook.com/FertilityFridays LinkedIn: Lisa Hendrickson-Jack     For more information about Michelle, visit www.michelleoravitz.com   The Wholesome FertilityFacebook group is where you can find free resources and support: https://www.facebook.com/groups/2149554308396504/   Instagram: @thewholesomelotusfertility   Facebook: https://www.facebook.com/thewholesomelotus/         Transcript:   Michelle (00:00) So welcome to the podcast, Lisa.   Lisa Jack (00:03) Thanks so much for having me back.   Michelle (00:05) Yes. So having you back again, we had a little mishap, issue with the recording for some reason, but we are on a new recording software. So hopefully this is going to be great and I'm excited to pick your brain again.   Lisa Jack (00:21) Well, I'm happy to be here. I mean we can never anticipate the tax nafus. It's part of online business, I suppose.   Michelle (00:28) Oh, totally. 100%. So we had so many good things too. That's what's really frustrating. We had such a great conversation about so many things. But for people who are first hearing about this, I know that a lot of people think that there's certain textbooks like menstrual cycles, or they have like sort of an idea in their mind of what a perfect menstrual cycle looks like. And since this is...   your absolute specialty and you understand it from like A to Z, can you describe what a healthy menstrual cycle should look like?   Lisa Jack (01:06) Yeah, I mean, that's a great place to start. And just to put it out there when I'm working with clients and practitioners, I always say there's no such thing as a perfect menstrual cycle because you're a human, not a robot. And so when we look at what a healthy menstrual cycle looks like, we should be looking at a range. And basically, what I can lay out is the different parameters that we're looking at. Often when I talk about the menstrual cycle, people's minds will go straight to the period.   Michelle (01:17) Right?   Lisa Jack (01:34) and they'll kind of think, okay, well, what is a healthy period? But then they don't necessarily think about all the other parameters. So when we're looking at what makes a healthy menstrual cycle, we can look at the overall cycle length, which ideally would be somewhere between about 24 and 35 days. We can look at the pre -ovulatory phase in particular. So we can look at the period. So the period is its own category. We want to have a menstrual period that overall is somewhere between three to seven days with an average of about five days.   And I always say the period should be like a sentence. It should have a beginning, a middle, and an end, and then it should be over. So if it's like trailing on for days and days of bleeding, if you're getting bleeding throughout your whole cycle, as o