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找不到喜歡的影片嗎？你也能自己匯入影片喔
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05:27
This is How Testosterone Builds Muscle
10
B2
04:44
How Much Testosterone Do You Have?
14410
C1
22:10
Gender Analysis 01. Low T: A Tale of Two Hormones
142
B2
07:22
Gender basics: How sex hormones work, and their use by trans people (Gender Analysis)
85
B2
05:40
I Made This To Help Parents With Their Teenage Boys
3
B1
03:10
Why Some Men Can't Grow Beards
48
B2
02:44
The Shocking Reason Why People Cheat On Tests
48900
B2
02:33
Does Sex Affect Athletic Performance?
18567
B1
04:15
What Happens When You Take Steroids?
270
B2
05:09
Why Male Birth Control Is So Hard To Make
9
B2
02:40
Why Do People Go Bald?
25
B2
03:41
What If You Stopped Masturbating?
37695
C1
05:49
How do steroids affect your muscles— and the rest of your body? - Anees Bahji
9
B2
02:38
Does Creatine Cause HAIR LOSS?
163
C1
02:44
The Side Effects of Steroids | Trafficked with Mariana van Zeller
8
B1
02:35
Why Do People Obsess Over Sports?
803
B2
02:33
Why Do Men Go Bald?
30
B1
03:14
Former chief doctor for British Cycling and Team Sky guilty of doping charges - BBC News
10
B1
02:04
Myths About Sex Debunked
6449
C1
03:23
Men vs. Women: Who Really Gets Sicker?
18097
B2
02:59
Amy Cuddy - More confidence in 2 minutes (Condensed Talk)
6039
B1
03:49
Why You’re Attracted To Certain People
123578
B1
07:03
Why Penises Are Shrinking Across the World
23
B2
06:34
Learn to talk about having the flu in 6 minutes
2872
B1
03:52
Is Soy Bad For You?
211
C1
03:25
Alcohol Effects on Fitness - Bad For Your Gains?
19
B2
04:22
Why Some Men Go Bald
4614
B1
15:00
How to Lose Fat the Right Way (MEN VS WOMEN!)
15
B1
02:21
6 Facts about Female Sex Drive | Psychology of Sex
486
B1
04:06
Will This New Male Birth Control Gel Actually Work?
2
B2
04:27
How Important is Sleep for Building Muscle?
761
B2
00:16
On-Location | Seven Worlds, One Planet | Saturdays at 9pm | BBC America
1
B2
04:45
What We Know About Gender Identity According to Science
15646
B1
06:36
The Unexpected Connection Between Estrogen and Autism | SciShow News
4
B2
06:37
7 Signs You're Eating Too Much Sugar
1490
B2
02:51
Why Do Men Have Nipples?
211
B2
06:06
BBC 6 Minute English May 28, 2015 - Are Breads Back to Stay?
3388
B1
01:20
Approached by an Aggressive Bull Elephant | Naked and Afraid
4
B2
08:22
Why Do We Need Hormones?
5
B2
03:29
Why Sexy Is Sexy
308
B2
08:19
How to Gain Weight if You're Skinny (NUTRITION MYTH!)
152
B1
03:39
Is There A Pimple Cure?
14334
B2
04:07
WHAT IS LOVE?
96
B2
21:01
Laugh your way to a better marriage Part 3
160
A2
15:52
Why Do Women Have More Autoimmune Conditions?
6
B2
18:23
What will be the biggest stories of 2020? | The Economist
15
B1
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