but today we're going to head over to the salon for, Mental Floss

但今天我們要來到Mental Floss(YouTube頻道)的沙龍

where I'll be talking to you about 20 myths and misconceptions about sex.

我們將會談到20個關於『性』的迷思與錯誤認知

Look, fair warning here

事先警告：

This is an episode about sex. If you think that's inappropriate or it's not

這一集是關於性 你若覺得這議題不妥或是

your thing, probably a good idea to turn this off now.

不是你的菜 現在就關掉會是個不錯的選擇

Did you know that it's a myth there's any correlation between penis between penis size and shoe size?

你知道有個迷思是 陰莖大小與鞋碼有關係嗎？

There have been many studies on this, amazingly enough and they failed to find

許多研究 驚人的多 都在研究這個 但都無法找到

any link between the size of a man's shoes and the size of a man's stretched or erect penis.

任何鞋碼與男性拉長或勃起陰莖長度的關聯

There's also no relationship between his penis and the size of his hands or ears.

而陰莖大小與手或耳朵大小也沒有任何關連

Or anything else for that matter. Looking at his shoes will only tell you about his taste in footwear.

或是任何其他關連 盯著他的腳看只會告訴你他的穿鞋品味

And that's the first of many misconceptions about sex I'm gonna debunk today.

這就是我今天要揭露的第一項『性』迷思

It's a myth that the average man has a seven inch penis.

迷思：一般男性陰莖長度為7吋(17.78公分)

Let's be honest, to study this correctly you can't ask man how big their penises are,

老實說 要精準的研究這問題你不能直接問男性他們的陰莖多大

you have to get in there and measure yourself.

你得實際動手去量

We found 15 studies that looked at scratched penile length and most men had

我們發現15個關於拉長陰莖長度研究指出 大部分的男性

an average around five inches

平均長度為5吋(12.7公分)

Here in Indiana, the Kinsey Institute studied more than 1,600 men

在印第安那州 Kinsey機構研究1600多名男性

and found an average erect penis size was about 5.6 inches.

發現平均勃起長度為5.6吋(14.2公分)

Interestingly, erections brought about by oral sex were larger than

有趣的是 口交導致的勃起程度比

erections brought about by manual stimulation.

手淫帶來的勃起程度還大

Is that cuz oral sex causes bigger erections,

是因為口交造成較大的勃起

or is it cuz bigger penises get oral sex? We have no idea.

還是因為較大的陰莖會被口交？我們無法得知

It's a myth that wearing a condom makes you last longer.

迷思：戴保險套可以讓你更持久

In a study of 500 men from Europe and America,

一項關於500位歐美男性的研究指出

their "intravaginal ejaculation latency time" was 5.4 minutes.

他們的「內射延遲時間」為5.4分鐘

They literally clocked these men with a stopwatch.

他們真的用碼錶去測量這些男性

Men, 18-30 years old lasted the longest, at 6.5 minutes on average.

18-30的男性可以撐最久 平均為6.5分鐘

Dropping to only 4.3 minutes for men over 51.

過51歲的男性則掉到4.3分鐘

Wearing a condom made no difference. Nor did whether the men were circumcised.

戴不戴保險套並無差別 男性割包皮與否也無影響

Here Clark Kent's SuperSpeed backfires, Aquaman wins.

超人的超速過頭了 水行俠勝

It's a myth that you can build up on much bigger load.

迷思：你可以累積(精液)的量

I'm not sure why so many people care about this but here we go.

我不懂為何這麼多人在意這件事 但 來吧

In 2005, a study of more than 6,000 men who provided about 9,500 "samples" was published.

2005年 一個關於6000多男性提供9500個(精液)樣本的研究被發表

Men who waited a week had an average ejaculate volume of 3.7 ml.

那些等了一週(才射的)男性 平均射精量為3.7ml

Men who had sex the day before, had a volume of 2.3 ml.

前天有性行為的男性的量為2.3 ml

That's a difference of less than 1/3 of a teaspoon.

這樣的差異不到1/3茶匙

But even men who came earlier that day still produced 2.4 ml,

甚至當天稍早有射精的男性也有2.4 ml的產量

so we can't imagine that waiting is worth it.

所以我們不能妄想等待是值得的

It's a myth that men want blondes more than brunettes.

迷思：男人更愛金髮勝於褐髮女性

Sure, there've been some local studies that point to the fact that men may say this.

的確有些地方的研究指出男性會這麼說

But they're usually in places were blonde hair is less common.

但這些研究通常是在金髮女性較少的地區

In areas where blonde hair is more common, the preference is not as clear.

在金髮女子較普遍的地區 這樣的偏好則較不明顯

There's also no correlation in studies between women having blonde hair

研究也發現褐髮女性與

and having more sexual partners, more sex, or more orgasms.

擁有更多性伴侶、性行為或高潮之間並無關連

It's a myth that most women are going hairless these days.

迷思：現在大部分的女性會除(陰)毛

Yes, it's true that Playboy centerfolds are more likely to have little or no pubic hair in recent years,

的確 近年來Playboy雜誌裡的折頁女郎大部分都沒有或極少陰毛

but that's a skewed sample.

但這只是個極端的樣本

A 2010 survey of more than 2,400 women

一個2010年的調查發現2400多位介於18-68歲的女性中

found that only 11% of women age 18-68 remove all of their hair most of the time.

只有11%的女性大部分時間會除掉所有的毛

20% removed no hair at all,

20%的女性從不除毛

and only about a quarter removed their pubic hair some of the time.

然後只有1/4的女性會偶而除陰毛

Going bare somewhat related to age,

除毛似乎跟年紀有關

with 21% of 18-24 year olds shaving it all off

18-24歲女孩中有21%會除掉全部的毛

versus 9% of women in their 30's or 2% of women over 50.

30幾歲的女性是9% 50歲以上的女性則只有2%

Bottom line though, is that the majority of women of all ages

重點是 各年齡大部分的女性

keep some hair down there.

下面都會留點毛

It's a myth that bigger breasts are less sensitive than smaller breasts.

迷思：大胸部比小胸部還要不敏感

Some people have argued that bigger breasts have longer nerves to get to the skin,

有些人主張 大胸部的皮膚傳導神經更長

and that this makes them "feel" less. Of course, then, taller women would have less sensitivity, too,

所以這讓他們『感覺』較少 當然 這樣高的女性也較不敏感囉

and no one makes that argument.

但沒人會做這樣的推論

The evidence for this comes from studies

這樣的結果來自於那些

that ask women if they could feel hair-like filaments of different sizes on their breasts.

詢問女性可否感覺到不同大小的毛絲在自己胸部上的研究

There were differences,

結果的確有別

but no woman ever defined sensitivity during sex as the ability to feel a single hair.

但沒有任何女性將做愛中的敏感程度 與 胸部能否感受到毛髮的能力 畫上等號

Besides, no one argues that men with smaller penises

況且沒人會推論陰莖較小的男性

derive more pleasure than men with large penises.

會比陰莖較大的男性得到更多的愉悅感

It's a myth that sex is great exercise.

迷思：做愛是很好的運動

Yeah, it burns off some calories but most people aren't active for that long.

的確 是可以燃燒一些卡路里 但大部分的人沒辦法持續這麼久

30 minutes of sex might burn off 85-150 calories

做愛30分鐘也許可以燃燒掉85-150大卡

but remember the average intravaginal ejaculation latency time I mentioned before?

但還記得我先前提到的平均內射延遲時間(5.4分鐘)嗎？

Not even close. The time that sex is aerobic

差的遠咧 做愛有氧的時間

where your heart rate goes up is even shorter.

當你心跳加快時 (內射延遲時間)甚至會更短

Despite what you've learned from our highly scientific competitor, Mad Men

不論你從我們高度科學的對手-Mad Men(美國影集-廣告狂人)中學到什麼

it's a myth that all men cheat or that there's a difference between men and women

『所有男人都會外遇或是男女之間(外遇程度)不同』是個迷思

If you define cheating as intercourse then yeah men cheat more often.

如果你將外遇定義為性交 那男人的確比較常外遇

If you broaden it to include other acts, then women cheat pretty much as often as men

如果你放寬外遇的定義 那女人外遇的頻率不雅於男人

Surprisingly, age doesn't seem to be a factor, either.

令人驚訝的是 年紀 似乎也不是一個決定因素

The most comprehensive study we've seen showed that 23% of men,

我們看過最詳盡的研究指出23%的男性

and 19% of women, had cheated in their current relationship.

及19%的女性 在現有的戀情關係中都曾外遇過

The biggest predictor was being unhappy or incompatible in terms of sexual attitudes or values.

最大的預測變數是覺得不開心 或 在性或價值觀上無法契合

It's a myth that men peak sexually long before women.

迷思：男性遠比女性更早達到性高峰

What does peak mean, anyway? If you define it to be the frequency of sex,

然而高峰到底是什麼？如果你將它定義為做愛頻率

then both men and women are likely to go without it for a whole year during their 20's.

那男人跟女人在20幾歲時 有可能一整年都沒有(達到性高峰)

If we define it by masturbation, they're both most likely to do it in their late 20's.

如果我們將它定義為自慰 那則較好發於男女20幾歲晚期

If we define it by oral sex, men are most likely to get in their late twenties and

如果我們將它定義為口交 那男性通常是在20幾歲晚期達到被口交的性高峰

give it in their 30's.

且於30幾歲達到替人口交的性高峰

Women are most likely to give and receive it in their late 20's.

女性通常在20幾歲晚期達到被/替人口交的性高峰

If we define sex at least four times a week, it's 30's or 40's for men,

如果我們將一週至少性交四次作為性高峰基準的話 男性是在3-40幾歲

and late 20's for women. There's no metric that makes this myth true.

女性則在20幾歲晚期 每有任何個準則可以證明這迷思

Speaking of sexual peaks, did you ever wonder if Spiderman was a metaphor for going

說到性高峰 你可曾想過蜘蛛人是經歷青春期

through puberty?

的隱喻？

It's a myth that young men are more likely to ejaculate prematurely.

迷思：年輕男性較容易早洩

If we define that as climaxing too early then studies have shown that

如果我們將早洩定義為太早高潮 則研究顯示

30% of 18-29 year olds have an issue. But so do 32% of men in their 30's,

30%年紀介於18-29的男人有這問題 但30幾歲的男性中也有32%

28% of men in their 40's and 32% of men in their 50's.

40幾歲的男性中有28% 50幾歲男性有32%有早洩的問題

For most men, it's a transient issue that goes away.

對大部分的男性來說 這是一個短暫、會消失的問題

For men with severe and lifelong premature ejaculation,

對那些有嚴重、終生早洩問題的男性來說

it actually worsens as men age.

(早洩問題)只會隨著年紀的增長而惡化

It's a myth that men think about sex every 7 seconds. This one defies belief,

迷思：男人每隔七秒就在想做愛 這簡直在挑戰信念

it would be, sex...

那會像是: 做愛...

sex… sex,

做愛...做愛...

all day! That would be more than 57,000 times a day.

一整天！那一天會超過57,000次

It's pretty much every time you take a breath.

頻率大概就像你每次呼吸的頻率

Over 40% of men report thinking about sex

研究顯示超過40%的男性

only a few times a month or a few times a week.

一個月或一週只會想(做愛)幾次

4% of men think about sex less than once a month

4%的男性一個月想做愛的次數不超過一次

There's no truth to this one at all.

所以這個迷思完全不是真的

It's a myth that married people don't masturbate.

迷思：結婚的人不自慰

Lots and lots of people masturbate. A study of college students found that 98% of males

很多很多人會自慰 研究指出98%男性大學生

and 44% of females reported having masturbated.

以及44%女大生曾自慰

Males averaged 12 times a month and females average 5.

男性平均一個月12次 女性則為5次

A study of married people, found that 85% of men

研究已婚人士發現 85%男性

and 45% of women had masturbated in the last year.

及45%女性去年曾自慰過

It's a myth the dead males can develop erections.

迷思：屍體可以射精

Who comes up with this stuff, anyway, do an internet search you're bound to

是誰想到這種東西 然而你若上網搜尋必定會

come up with a news story about a woman in Missouri who worked in a mortuary

找到一則新聞: 一個在密蘇里州太平間工作的女性

and was arrested after becoming pregnant from a cadaver she, well, worked on.

跟一個她工作「上」的屍體受孕後被逮捕

It's a hoax. What is also a hoax is the idea that a cadaver could "develop" an erection.

這是假消息。屍體可以勃起這個想法也是另一個假消息

Can't happen. If you die flaccid, you're flaccid for good.

不可能發生 你如果(陰莖)痿軟的時候死去 那你就會永遠的痿軟

It is possible to die with an erection, though. And keep it.

然而 勃起的時候死掉是有可能的 並一直保持勃起狀態

It actually occurred pretty often in men who died by hanging.

這種情況其實長長發生在男性被吊死的時候

You still can't cause a dead body to ejaculate, though.

然而 你仍舊無法讓屍體射精

It's a myth that only males have wet dreams.

迷思：只有男性才會做春夢

First of all, let's stipulate that a wet dream is a state of sexual arousal, while asleep,

首先讓我們先說好 春夢 是一種睡夢中性興奮的狀態

that results in orgasm that wakes you up. More than one study has found that about

會造成高潮且讓你起床 不只一個研究發現

40% of females report having had this happen to them.

40%的女性也曾有此經歷

About 30% of females report this happening in the last year.

約30%的女性去在年中有此經歷

The numbers for men are higher, but women ain't doing too badly.

男性的比例較高 但女性的表現也不差

It's a myth that masturbating will make you go blind. I mean, come on.

迷思：自慰會讓你瞎掉 呃拜託...

If this were true YouTube would be a total waste of time because almost none of you

如果這是真的 YouTube就沒用了因為你們大部分

would be able to see the videos. This is just totally untrue.

都會無法看上面的影片 這個迷思完全是假的

But here's a fun fact, John Harvey Kellogg, was a famous nutritionist and sexual adviser,

不過有個有趣的事實：John Harvey Kellogg是知名的營養師及性導師

he developed a number of food including his eponymous corn flakes

他開發了許多食物包括他的同名(家樂氏)玉米脆片

to reduce sexual desire and stop masturbation.

來減少性慾及停止自慰

I don't think they work.

我不覺得有效

It's a myth that the pill make you gain weight. When it was first developed, it contained very very high levels of both

迷思：避孕藥會讓你變胖 當它們剛被研發出來時 有非常高含量的

estrogen and progesterone, but the pill as it exists today is much more refined

雌激素及黃體素 但現在的避孕藥已經大大改良過

and contains far lower levels of hormones. A meta analysis by the Cochrane Collaboration

且荷爾蒙的含量大大減少 Cochranne Collaboration的一個後設分析

found 49, yes 49 studies that

發現有49 沒錯 49個研究

compared the pill to a placebo, and other pills, with respect to weight gain.

比較避孕藥作為安慰劑及其他藥的體重增加情況

None of the studies that compared the pill to placebo, showed that birth control pills

沒有 任何一個將避孕藥作為安慰劑的實驗 發現避孕藥會

cause weight gain.

造成體重的增加

I'm not saying you're guaranteed not to gain weight if you go on the pill,

我的意思不是 你若吃避孕藥保證不會變重

but it's likely not because of the pill. This pill full of candy will make you gain weight.

而是(變重)通常不是避孕藥所致 這個充滿糖果的藥就會讓你變重了

It still won't make your kids hyper, though.

但仍然不會使你的孩子過動

It's a myth that you can game having a boy or girl by how you have sex.

迷思：做愛的方式可以決定生男或生女

You just can't. Some people say that X sperm are bigger than Y sperm,

就是不可能 有些人說X染色體的精子比Y染色體的精子大

because the X chromosome a significantly bigger than the Y chromosome.

因為X染色體比Y染色體大多了

Therefore, if ejaculation occurs further from the cervix,

所以如果射精在離子宮頸較遠的地方

Y sperm have a better chance of overtaking the X sperm and making it to the egg first,

Y染色體的精子就更有機會超過X精子來先抵達卵子

So if you want a girl, go for a deeper ejaculation. If you want a boy, do the opposite.

所以你如果想生女孩 要射的深一點 如果想要生男生 則相反

Another explanation has it that X sperm are hardier than Y sperm.

另一種說法是X精子比Y精子還要強壯

So if you ejaculate farther from the cervix, X sperm are more likely to make it all the

所以你如果射的離子宮頸較遠 X精子比較有可能先

way to the egg first.

到達卵子

If this is true, if you want a boy, go for a deeper ejaculation.

如果這是真的 想生男生 就要射深一點

If you want a girl, do the opposite. Or just recognize that all this is ridiculous.

想生女生 則相反 或者請認知這全部都是胡扯

It's a myth that you don't need the HPV vaccine until you're having sex.

迷思：還沒有性行為之前不用打HPV(人類乳突病毒)的疫苗

First of all, you need to be fully vaccinated before you're ever exposed to HPV for the vaccine to work.

首先你在接觸HPV之前給要完整的接打疫苗以使疫苗作用

And that takes time. So once you've had sex, it may be too late,

而這(疫苗要作用)需要時間 所以你一旦有性行為 可能就為時已晚了

HPV is really common. So is sex.

HPV很普遍 做愛也是

By the end of their teenage years, more than 3 quarters of all adolescents have

青少年時期末期 已有3/4的青少年曾

engaged in sexual intercourse. More than 2 thirds of them had sex with at least 2 people.

有過性行為 這些人當中有超過2/3的人發生對象多於2人

More than 6% of children in the United States have sexual intercourse before the age of 13.

在美國有6%的孩子在13歲以前就有過性行為

And younger kids are the least likely to use protection. The HPV vaccine is about prevention,

而年輕的孩子也較不會使用保護措施 HPV疫苗是為了預防

get it early. And we return to the salon to talk about the myth that

早點施打 現在我們回到沙龍來談談這個迷思：

the HPV vaccine encourages girls to have sex.

HPV疫苗鼓勵女生做(更多)愛

This has been studied through a cohort of almost 1400 girls,

這議題有一相關研究一群近1400位女性中

493 received the vaccine. Researchers followed them for 3 years after immunization

493位有施打疫苗 研究者在她們免疫後持續追蹤3年

to see if there were any differences in sexual outcomes.

以觀察她們在性事上是否有任何不同

There weren't any. The girls got the vaccine didn't get any more sexually transmitted infections,

結果是沒有 這些有施打疫苗的女性並沒有得到更多性病

they didn't get pregnant more often and they didn't see contraceptive counseling more

也沒有更頻繁的受孕或者是去徵詢更多的避孕諮詢

The HPV vaccine only protected them. Thanks for watching Mental Floss on YouTube

HPV疫苗的作用就是保護她們 謝謝您在YouTube上收到Mental Floss

which is made with the help of all these nice people.

影片製作有這些好人的幫忙

Again, I'm Dr. Aaron Carrol and hey

我是Dr. Aaron Carroll 嘿 還有

if you like this episode, you might wanna buy our recently published book

你如果喜歡這一集 可能也會想買我們最新出的一本書

"Don't Put That in There!" and 69 other sex myths debunked.

《別把它放到那！》(暫譯)並再揭露69個性迷思

You get it at book stores everywhere and links are in the text below.

你可以在各處的書店買到 連結附在下方的文字中

Buy a cop, I'd really appreciate it. You can also find me regularly on Healthcare Triage

你若買一本我會很感激 你也可以在Healthcare Triage固定看到我

filmed right over there. We talk about everything health and health policy related

就在那邊拍攝的 我們會談論到健康、健康政策相關的所有事情

links also down below. Every week we endeavor to answer one of your mind blowing questions.

連結也附在下方 每週我們都努力回答一個讓你們無比困惑的問題

This week's question comes from beshay13 who asks

這週的問題來自beshay13 他問：

"Why is there no metric version of time, like a base 10 times system or something?"

為什麼時間沒有公制的版本 像是10進位制這類的？

Well beshay there is, but no one uses it.

beshay, 有這種東西 但沒人在用

It uses base units that are somewhat equivalent to decimal divisions of the day like

有用類似等同於十進位至的基本單位 像是

1/10th or 1/100th, 1/1000th etc, lots of different names have been proposed for these divisions,

第十分之一 第百分之一 千分之一等等 許多不同名稱都提議做為分度

like Tick, Mec, Ki, Cron and Moment.

像是Tick, Mec, Ki, Cron跟Moment

In 1897 in France. a committee proposed switching to metric time,

1897年在法國 一個委員會提議換為公制的時間

but the idea never gain popularity. Thanks again for watching,

但這理念從未受好評 再次感謝您的收看