(WARNING: This episode includes strong language and sexual references which some people might find offensive)

Michelle de Swarte began smoking cannabis from a young age and while working as a model in New York and London did ALOT of recreational drugs.

She’s now 44 and working as a successful writer and comedian and tells Katherine she has replaced the class A’s with as many vitamins and supplements. She’s not too worried about ageing but really nervous about her biological age and is hoping her new lifestyle will be reflected in the result.

In this brilliant, thought-provoking and open interview, she shares how her troubled childhood shaped her, how she got lost in the game of fillers and how she came to the positive decision to live life child-free.

Michelle de Swarte’s family describe her as Darth Vaper and Michelle admits she has more than the occasional puff. Dr Nichola Conlon looks at the emerging science on vaping and smoking and how they affect biological age. Nichola also assesses Michelle’s vitamins and which ones are best for her reversing the ageing process on the inside.

WARNING: This episode includes strong language and sexual references which some people might find offensive.

Michelle de Swarte wrote and starred in the BBC comedy drama Spent. She’s on tour in the Autumn with her new show ‘The Afters’ that looks at youth, social media and ageing.

Alastair Campbell recorded this before he turned 68.

Lead producer– Molly Carter

Social media - Cassidy Rebelo

Video Producer – Elena Cotton

Video Producer– David May

Artwork – Ben Watkins

Video Editor - Paul Collins-Reddin

Head of Video – Edie Jefferys

Sound Designer – Dominic Delargy

Executive Producer – Henrietta Harrison

Chief CreatIve Officer – Lucie Cave

Dame Denise Lewis is 52 but feels much younger and says if her biological age is any higher than 38 - she’ll sprint out of the studio in a strop.

She’s an Olympic Gold winner, a mum of 4 and now heads up UK Athletics which promotes young talent looking to represent the country. She’s a high achieving woman, at home and and at work but says, over the years, she’s learnt when and how to ask for help.

For anyone juggling family, friends and work, it’s an inspiring listen and Denise tells an incredible story about turning fifty and how nothing was going to stop her from partying that day.

Dr Nichola Conlon deep dives into the menopause and explains how the body changes during that time and the dramatic impact it can have on your biological age.

Dame Denise Lewis’ book Adaptability Seven Lessons to Thrive in a World of Competing Demands is available now.

Alastair Campbell co-hosts the UK’s most successful podcast, The Rest is Politics and a huge percentage of the audience is under thirty. He tells Katherine why he thinks he still appeals to the young.

He’s 68 but he’s hoping his biological age will be 21. If it’s not, he’s calling for a recount or an overhaul of the system!

His kids keep him feeling young, but Alastair says it can be challenging being the oldest man in the audience when he’s watching his comedian daughter Grace perform her often explicit set.

He lives a healthy life now but will colitis, stress and past struggles with depression and alcoholism have impacted on his biological age?

Dr Nichola Conlon gives her verdict on Alastair’s result and applauds his commitment to cold water swimming. She explains what happens to the body when you plunge in cold water, and how long you need to be in cold water per week to get the health benefits.

If you want an explainer on how UK politics work, the books Why Politics Matter and Alastair Campbell Talks Politics are available now

Alastair Campbell recorded this before he turned 68.

Lead producer– Henrietta Harrison

Social media - Cassidy Rebelo

Video Producer – Elena Cotton

Video Producer– David May

Artwork – Ben Watkins

Video Editor - Paul Collins-Reddin

Head of Video – Edie Jefferys

Sound Designer – Dominic Delargy

Executive Producer – Mick Coyle

Chief CreatIve Officer – Lucie Cave