It's Happiness Lab's fifth birthday - so as part of the celebration we're playing some of Dr Laurie's favorite episodes. The final selection attracted a lot of downloads when it went out. but also made some people mad. The Introvert's Guide to Extroversion.

Jessica Pan hated social gatherings - she cried when her friends threw her a surprise birthday party, and was even too scared to give a speech at her own wedding. Jessica was a hardcore introvert - and it was making her sad.

Extroverts find it easier to experience the joy that comes with social interactions - but that doesn't mean introverts are doomed to lives that lack such fun. Jessica read some research that suggested introverts can learn to enjoy being more outgoing - so decided to turn her social life around.

You can read more of Jessica's story in her book: Sorry I'm Late, I Didn't Want to Come: One Introvert's Year of Saying Yes. She is posting updates from her year of extroverting at her Substack, "It'll Be Fun, They Said" (https://jesspan.substack.com/).

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To celebrate five years of The Happiness Lab, Dr Laurie has picked out the five episodes she loves the most. And this is a special one - Nerd Out! The Happiness of Being a Fan.

Really love a TV show; a boyband; a sci fi movie; or a celebrity? We're often too embarrassed to admit adoring some things for fear that we'll be seen as frivolous or childish - but we may be missing out on the happiness benefits that geeking out can bring.

Dr Laurie explores the joy of fandom with Benedict Cumberbatch obsessive Tabitha Carvan, YA author Jennifer Lynn Barnes and Star Trek actor (and geek-vangelist) Wil Wheaton.

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Happiness Lab is five years old. To mark our birthday, Dr Laurie has picked her favorite five episodes from the archive. The show Why Nostalgia Ain't So Rosy was certainly a memorable one for her.

Actor Rob Lowe LOVES the 1980s. And who can blame him? He was one of the most famous men on the planet. But, as he tells Dr Laurie, he's careful not to wallow in nostalgia for the music, fashions and events of his youth too much - and happiness science backs him up on this.

Research suggests that our memories of the past can be very selective and highly unreliable - causing us to misremember events and cast them in a rosy glow. Sadly, this also causes us to make very bad decisions about what will make us happy in the future.

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