Sex: How It Works Page #2

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he looks at the picture

of Katherine.

MALE PARTICIPANT: I was

looking at hair colour

and eyes and teeth actually,

I was looking at teeth.

DR LINDA:
Well how I wanted to

say interestingly what we found

it when girls were smiling,

really kind of focused and

engaged on their mouth, but

there were a couple of clues

there as to who you may

have liked more than others.

MALE PARTICIPANT: Interesting..

NARRATOR:
While a smile can

increase a woman's sex appeal,

smiling men have been found

to be less sexually attractive

to the opposite sex.

DR LINDA:
Jon will take a

look at the bio feedback.

JON:
I would suggest that,

you might not think it,

but there's actually two

girls there that you favor.

NARRATOR:
Next Dr Linda wants to

discover what sort of body type

arouses the men.

DR LINDA:
Hi guys. Thanks for

doing the eye tracking earlier.

So what we're going to do now

is we're going to flash up

the images with the different

waist-hip-ratio test.

So again, what we need you

to do is circle the number

of your preferred figure.

You know, just wait

till we see all six,

and you can circle

which one you prefer.

What a lot of the appearance

research has shown,

is that there's almost this

sort of divine proportion

when it comes to the ratio

between the waist and the hips.

Traditionally, a very slim

waist with bigger hips,

a sort of hour glass figure is

what's particularly attractive

to men.

And there's a lot of theories

put forward of more rounded hip

being more child bearing hips

and smaller waist being

of conducive to

youth and health.

NARRATOR:
One other physical

attribute also catches

the mens' eyes.

DR LINDA:
Since

we've become bipedal,

since we've kind of evolved from

walking on all fours to standing

on two legs, it's interesting

how sexual lures have adapted.

It's become much more

centered around the breasts,

y'know I guess the breasts are

the new buttocks.. the fact

that the breasts are right under

the face which is always what

we focus on, certainly helps.

Thank you for that...

we'll take a look at them.

I like that this is folded

up, that just worries me.

NARRATOR:
The initial tests show

some of the men are turned on

physiologically by a

number of the women.

We'll find out a bit later

if the women share those same

feelings towards the men.

But first let's check out how

sex works in the real world.

And in this...

We're going to follow

ladies' man - Rob,

and reveal the extraordinary

control sex hormones exert over

his mind and body in his

pursuit of a sexual encounter.

ROB:
Sex is for fun,

sex is for excitement.

I had numerous one night stands.

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