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Should You Let A Dog Lick Your Face?03:43

Should You Let A Dog Lick Your Face?

29273
B1
Why Aren’t Humans Naturally Nocturnal?04:07

Why Aren’t Humans Naturally Nocturnal?

54064
B1
Why Everyone Should Sleep Naked!03:07

Why Everyone Should Sleep Naked!

19684
B1
Why Sleeping Together Is Better02:34

Why Sleeping Together Is Better

33460
B1
Is Vegan 'Meat' Really Healthy?03:33

Is Vegan 'Meat' Really Healthy?

18841
B2
What Your Sleeping Style Says About You03:57

What Your Sleeping Style Says About You

54262
B1
Can A Man Get Pregnant?04:22

Can A Man Get Pregnant?

29910
B2
Why Chocolate Is So Good For You02:14

Why Chocolate Is So Good For You

73425
B1
The Best Way To Treat a Broken Heart03:12

The Best Way To Treat a Broken Heart

254
B1
Do We Love Dogs As Much As Babies?02:59

Do We Love Dogs As Much As Babies?

14112
B1
President Obama Explains How Pollution Affects Our Planet01:13

President Obama Explains How Pollution Affects Our Planet

15959
B1
Why People Get Naked Before Freezing To Death04:03

Why People Get Naked Before Freezing To Death

2264
B1
How Classrooms Slow Your Brain Down03:06

How Classrooms Slow Your Brain Down

135895
B1
Men Only Have 15 Minutes To Impress A Woman!02:24

Men Only Have 15 Minutes To Impress A Woman!

76883
B1
Can You Make Someone Fall In Love With You?04:28

Can You Make Someone Fall In Love With You?

26941
B1
The Oldest Child Is Smarter and Here's Why02:53

The Oldest Child Is Smarter and Here's Why

109148
B1
Why Does Everyone Hate Eye Contact?02:41

Why Does Everyone Hate Eye Contact?

40998
B1
Are Sarcastic People Smarter?02:48

Are Sarcastic People Smarter?

80229
C1
Where Does Fat Go When You Lose Weight?03:31

Where Does Fat Go When You Lose Weight?

65128
B2
Is It Unsafe To Take Expired Medicine?03:39

Is It Unsafe To Take Expired Medicine?

41883
B2
Why Schools Should Start Classes Later!03:23

Why Schools Should Start Classes Later!

89347
B1
What Are The Real Effects Of Cyberbullying?03:45

What Are The Real Effects Of Cyberbullying?

22453
B1
Why Kissing Is Disgusting02:00

Why Kissing Is Disgusting

31465
B2
The Surprising Way People Become Homeless02:12

The Surprising Way People Become Homeless

30129
B1
The Science Of Mountain Climbing!03:54

The Science Of Mountain Climbing!

28546
B1
The Incredible Benefits Of Having Plants In Your Office!02:17

The Incredible Benefits Of Having Plants In Your Office!

34866
B1
What Happens When A Fly Lands On Your Food?02:14

What Happens When A Fly Lands On Your Food?

16678
B2
Why Do Cockroaches Even Exist?04:13

Why Do Cockroaches Even Exist?

816
C1
Why Is Waking Up So Hard?04:15

Why Is Waking Up So Hard?

52075
B1
Is There A Couch Potato Gene?02:17

Is There A Couch Potato Gene?

14879
B1
Cold vs. Flu: What's The Difference?04:54

Cold vs. Flu: What's The Difference?

1271
B2
What's the Difference Between a Typhoon and a Hurricane?02:40

What's the Difference Between a Typhoon and a Hurricane?

9524
B1
Why Your Cute Cat Is Still A Vicious Killer02:49

Why Your Cute Cat Is Still A Vicious Killer

196
B2
Why Do You Remember Dumb Stuff But Forget Important Stuff?03:22

Why Do You Remember Dumb Stuff But Forget Important Stuff?

103667
B1
Why You Should Stop Using Hand Sanitizer!02:23

Why You Should Stop Using Hand Sanitizer!

29979
B1
Do Sleeping Pills Really Help You Sleep?04:02

Do Sleeping Pills Really Help You Sleep?

29875
B1
Why You Should Be Friends With People Who Curse01:50

Why You Should Be Friends With People Who Curse

74740
B1
Why Sitting Too Much Can Kill You!02:31

Why Sitting Too Much Can Kill You!

27842
B1
How Long Should Sex Last?03:02

How Long Should Sex Last?

21178
B1
The Danger Of Staying In Bed Too Long04:31

The Danger Of Staying In Bed Too Long

60520
B1
Why Clean Coal Is A Myth04:48

Why Clean Coal Is A Myth

195
B1
How Much Testosterone Do You Have?04:44

How Much Testosterone Do You Have?

17741
C1
The Secret To A Successful Relationship02:51

The Secret To A Successful Relationship

95085
B1
Men vs. Women: Who Really Gets Sicker?03:23

Men vs. Women: Who Really Gets Sicker?

18111
B2
What Happens To Your Body When You Fast?04:28

What Happens To Your Body When You Fast?

58493
B2
Your Dog Forgets You When You Leave04:46

Your Dog Forgets You When You Leave

19684
B1