0:06:02 > 0:06:03"Roses are red, violets are blue,
0:06:03 > 0:06:05"you're my favourite guinea pig,
0:06:05 > 0:06:09"I hope I'm yours, too. Love, Doris."
0:06:09 > 0:06:10Oh, Colin,
0:06:10 > 0:06:12a Valentine's card from an old flame!
0:06:12 > 0:06:14Oh, it's so exciting!
0:06:14 > 0:06:17Yes, and we're going out for a surprise dinner tonight.
0:06:17 > 0:06:19Ooh, that's so romantic.
0:06:19 > 0:06:21I LOVE surprises... Wah!
0:06:22 > 0:06:25Hey, lads - I've just invented a new perfume.
0:06:25 > 0:06:27It's called Stinky Mist.
0:06:27 > 0:06:29COLIN CHOKES
0:06:29 > 0:06:31Positions, everyone!
0:06:31 > 0:06:33This is Brain Freeze!
0:06:33 > 0:06:35With Dr Knowles...
0:06:36 > 0:06:40..Professor McCork
0:06:40 > 0:06:43and...Colin the floor manager.
0:06:46 > 0:06:48Stand by!
0:06:48 > 0:06:51JINGLE PLAYS
0:06:52 > 0:06:53# Brain freeze! #
0:06:53 > 0:06:56Hello, everyone and welcome to Brain Freeze.
0:06:56 > 0:06:57It's time to reveal...
0:07:00 > 0:07:02And today, we're asking what happens
0:07:02 > 0:07:03when we fall in love?
0:07:03 > 0:07:05Well, Dr Knowles, I happen to be
0:07:05 > 0:07:07an expert in matters of the heart.
0:07:07 > 0:07:09Actually, Professor,
0:07:09 > 0:07:11we don't love with our hearts, we love with our brains.
0:07:11 > 0:07:13You wha...?
0:07:13 > 0:07:15When we fall in love, a chemical called dopamine
0:07:15 > 0:07:18floods the part of our brain that processes pleasure.
0:07:18 > 0:07:21This gives us such a rush that it makes us literally crave
0:07:21 > 0:07:22the other person.
0:07:22 > 0:07:24However, we also experience a spike
0:07:24 > 0:07:26in a hormone called adrenaline,
0:07:26 > 0:07:30and this has some... Shall we say, noticeable physical effects.
0:07:30 > 0:07:33Your mouth dries out, your heart starts to race,
0:07:33 > 0:07:34your palms get all sweaty...
0:07:34 > 0:07:36'Tis fierce embarrassing, really.
0:07:36 > 0:07:38It can be, Professor.
0:07:38 > 0:07:40But before we go on, we need to take a short break.
0:07:42 > 0:07:44And we are clear!
0:07:44 > 0:07:46So, Colin. What have you got planned for later?
0:07:46 > 0:07:50Well, I think classic is the way to go, Doctor - flowers, chocolates,
0:07:50 > 0:07:53a nice meal, some music. Maybe poetry...
0:07:53 > 0:07:55Whoa! Slow down, Colin.
0:07:55 > 0:07:57Don't forget to relax and be yourself too.
0:07:57 > 0:07:58HE SIGHS
0:07:58 > 0:08:01You're right, Doctor - just be myself.
0:08:01 > 0:08:03What could possibly go wrong?
0:08:03 > 0:08:06JAZZY LOUNGE MUSIC
0:08:06 > 0:08:07CRASH!
0:08:07 > 0:08:09Crumpets.
0:08:09 > 0:08:10Hey, Colin...
0:08:10 > 0:08:13Did I mention that my perfume has secret powers?
0:08:13 > 0:08:15HE CHOKES
0:08:15 > 0:08:17Oh, McCork, get away from me!
0:08:17 > 0:08:19Places, everyone!
0:08:21 > 0:08:24This just in from Rosalind. Is it true that love is blind?
0:08:24 > 0:08:27Well, some studies have shown that love does suppress
0:08:27 > 0:08:28the part of our brain
0:08:28 > 0:08:30which judges how nice people really are.
0:08:30 > 0:08:34And if the person you love doesn't love you back, it can cause stress,
0:08:34 > 0:08:38disturb your sleep and put you in a real bad mood.
0:08:38 > 0:08:41So why do we bother with love at all?
0:08:41 > 0:08:42Well, love can go either way.
0:08:42 > 0:08:44Let's say the other person DOES like you
0:08:44 > 0:08:46and you show each other affection.
0:08:46 > 0:08:49The cuddle hormone, oxytocin,
0:08:49 > 0:08:51is gradually released in your brain, giving you a warm,
0:08:51 > 0:08:54fuzzy feeling that helps with trust and bonding.
0:08:54 > 0:08:56It's enough to make you sick, isn't it?
0:08:56 > 0:08:58Anyway, I think it's time to wrap this one up.
0:09:01 > 0:09:04So, as you've seen, we understand a little bit about what
0:09:04 > 0:09:07happens in our brains when we fall in love.
0:09:07 > 0:09:09But the old romantic in me knows that there's something
0:09:09 > 0:09:12a little bit more mysterious to it than that.
0:09:12 > 0:09:14It's true, science can't explain everything
0:09:14 > 0:09:16and we're still not entirely sure
0:09:16 > 0:09:19why we really fall for the people we do.
0:09:19 > 0:09:22But the important thing is to have fun and not to overthink it.
0:09:22 > 0:09:24See you next time, folks!
0:09:26 > 0:09:29- And that's a wrap! - Wow, look at you, Colin.
0:09:29 > 0:09:31Nothing is going to stop me now.
0:09:31 > 0:09:33Wish me luck, everybody!
0:09:33 > 0:09:36Just a little top-up before you go, Colin.
0:09:36 > 0:09:38No, stop it, McCork!
0:09:38 > 0:09:40I told you, it has special powers.
0:09:42 > 0:09:44I love you, McCork.
0:09:44 > 0:09:46What the...?!
0:09:46 > 0:09:49- I love you, McCork.- Go away.
0:09:49 > 0:09:51- Get back!- I love you... - Get off me!- I love you.
0:09:51 > 0:09:53Go away, will you? Get off!
0:09:53 > 0:09:56I guess it must be true after all -
0:09:56 > 0:09:58love IS blind!
0:10:10 > 0:10:11# Brain freeze! #