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結果 : why do women have periods
4:46

Why do women have periods?

TED-Ed
17,356,331 回視聴 - 9 年前

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5:37

Why Do Girls Get Periods? | Menstruation | The Dr Binocs Show | Peekaboo Kidz

Peekaboo Kidz
11,700,403 回視聴 - 3 年前
4:12

How menstruation works - Emma Bryce

TED-Ed
2,158,853 回視聴 - 9 年前
0:48

Menstrual Cycle Basics | 3D animation (1/2)

Dr. Paulien Moyaert
9,147,834 回視聴 - 2 年前
3:46

How Periods And Hormones Impact Mood [Menstrual Cycle]

Sprouts
485,820 回視聴 - 1 年前
6:36

Why Do Women Have Periods?

ISH News
85,455 回視聴 - 4 年前
0:34

Why do we women have periods?!

House of Medics
1,690 回視聴 - 1 年前
3:10

Why you Stopped The Birth Control, have a Period But Still Not Conceiving

Nurse Terry
45 回視聴 - 2 日前
2:17

This is Your Period in 2 Minutes | Glamour

Glamour
37,794,612 回視聴 - 8 年前
10:51

The science of menstruation in 10 minutes | Dr. Jen Gunter

Big Think
824,171 回視聴 - 1 年前
0:22

The Woman Calendar! 📅 #periods #moodswings #hormones #pms #premestrualcycle #gynocup #cramps #girls

MildCares Official ® (GynoCup)
1,636,474 回視聴 - 1 年前
4:05

ovulation and menstrual cycle often called period|medical animationDandelionTeam #ovulation #period

Dandelion Medical Animation
46,341,516 回視聴 - 3 年前
3:47

What Is The Menstrual Cycle? | Physiology | Biology | FuseSchool

FuseSchool - Global Education
1,474,851 回視聴 - 9 年前
0:16

Menstrual Cycle | 🩸

Smart Doctor 👨‍⚕️
12,537,097 回視聴 - 1 年前
11:21

What Men & Women NEED To Know About The Menstrual Cycle | Dr. Mindy Pelz

The Diary Of A CEO Clips
1,495,715 回視聴 - 2 年前
0:22

Teen periods #teenperiods #periods #irregularperiods

Teena: the period guide for teens
637,120 回視聴 - 2 年前
0:26

Why You’re So Bloated On Your Period (It’s Your Uterus) 🩸

Healthy Emmie
6,819,137 回視聴 - 7 か月前
0:58

THE PERIOD REPRESENTATION from this book (before it was turned into a movie) is iconic #period

Nadya Okamoto
3,003,265 回視聴 - 7 か月前
0:18

Your period flow will change with your age. Watch to see what your future flow holds🩸🤩

Rael
2,644,053 回視聴 - 1 年前
2:26

The Menstrual Cycle | 3D Animation (2/2)

Dr. Paulien Moyaert
3,150,834 回視聴 - 2 年前