Does positive thinking work - even if you’re one of the country’s most unlucky people? And revealing how changing your mental state can even improve your immune system.

Tim Samuels brings Barrie and Margaret - and their tales of woe - face-to-face with positive-thinking gurus. Will they finally manage to alter their fortunes through a shift of attitude?

Tim also hears from a leading mind-body expert that having the right type of mental state - based in meaning - can improve survival rates for serious diseases and lead to better immune systems.

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The fascinating story of the fat vs sugar wars - and how it’s still misinforming what we eat today. Told through the life story of Tony The Tiger as he fights for his sugary survival today.

Tim Samuels hears how the scare caused by President Eisenhower’s heart attack in the 1950s led to six decades of flawed dietary advice, which still persists even today.

Against this dietary war between fat and sugar, Tim tracks the rise and fall of cereal mascot Tony The Tiger from one of the twentieth century’s greatest advertising icons, to now facing an imperiled existence as he approaches his eighth decade.

A cardiologist and dietician debate how much ‘good fats’ we should actually be eating.

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Is modern life making many of us breathe ‘incorrectly’ and can changing your breathing technique lower your stress?

Tim Samuels puts a horizontal form of breathing to the test. He hears from ‘The Iceman’ Wim Hof, who claims the comforts of life (and clothes) have made us too soft - which is bad for our immune system and minds.

An emergency doctor reveals how breathing techniques allow him to perform at his peak when a life and death case comes in.

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The extreme routines of the super successful and whether they really improve productivity or just make you feel guilty for not getting up super early.

Tim Samuels speaks to tech entrepreneurs - including one whose last meal of the day is at noon and is always in bed by early evening - who all swear by their daily routines.

Experts weigh on in whether routines themselves can breed success by freeing up the mind; and if it’s all creating another form of status anxiety for the rest of us.

Featuring no-nonsense wisdom from Bridget Jones author Helen Fielding.

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The truth behind vitamins and supplements, whether we need them and which pills can actually cause serious harm.

Tim Samuels also reveals the marketing secrets used to snare us in - from horny goats to snail trails; and the Mafia-like tactics of the industry which were straight out of the mob copybook. Mel Gibson makes a strange cameo too.

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Can too many selfies push you towards narcissism? Are we in the midst of an epidemic?

Tim Samuels takes a selfie-obsessive to be wired up in a lab to see if his picture taking is becoming a danger and whether he actually qualifies as a narcissist.

Experts also reveal the tell-tale signs of dating a narcissist.

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We go behind the scenes at Manchester City to reveal the cutting-edge techniques keeping players at peak fitness, as the women’s team prepare for the local derby against Manchester United.

Tim Samuels follows Scotland international Caroline Weir across the day to see what paces she’s put through (and exactly what she eats).

He also hears from City legend Paul Lake, once tipped as a future England captain, on how today’s methods might have saved his career from devastating injury.

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A couple’s dilemma over whether or not to raise their newborn vegan, which is a contentious issue that lawmakers overseas have tried to ban.

Tim Samuels brings the parents face-to-face with top dietary experts to get the latest health advice, as they make their decision.

They hear exactly what it would take to safely raise a baby vegan and what we can all learn from the newest nutritional research.

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The exciting promise of technology to tackle depression and anxiety.

The show put a wearable device, which sends a light current through the ear lobes, to the test. The results are fascinating.

Tim Samuels explores this new frontier for mental health when visiting what’s been labelled the most depressed part of England.

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Revealing how much exercise our bodies and minds actually want - the very latest research.

Should we essentially be aping how our caveman ancestors moved? And how burning 1600 calories can be as potent as Prozac.

Tim Samuels speaks to experts like Professors Daniel Lieberman and John Ratey - and fitness fanatic Paul Olima, who has been a body double for sports stars Usain Bolt, Anthony Joshua and Mario Balotelli.

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Wellness you can actually trust – from award-winning journalist Tim Samuels.

What’s best for your mind, body, diet and mood – all served with heaps of expertise and a sprinkling of wit.

This is the second series. We’ll be covering topics like: how much exercise our bodies and minds actually want; wearable tech as the new frontier for mental health; the dilemmas of raising a baby vegan; how to be as fit as a Manchester City footballer; whether vitamins and supplements are worth swallowing; the fat vs sugar war that still affects our diets; and whether we’re living through an epidemic of narcissism.

For extra content, videos and a regular newsletter go to bbc.co.uk/allhailkale