We all know Nadiya Hussain as Bake-Off winner, recipe writer and national treasure - but what few people knew until recently is that panic attacks have dogged her since childhood. Nadiya sat down with Hattie to mark her BBC documentary 'Nadiya: Anxiety and Me', and opened up about her disorder, what her faith means to her, and how she's managed 14 years of marriage without a single argument.

A journalist, mental-health writer, body-confidence champion and force to be reckoned with, Bryony Gordon has published four books including You Got This, a new life manual for teenagers. Her bullsh*t-free, empathetic approach to mental health is exactly what encouraged Prince Harry himself to open up to her in an award-winning episode of her own podcast. She's here at Grazia to talk about loving yourself as you are (even if that means embracing open pores and/or a few regrettable life choices), plus the heart-warming magic of guinea pigs.

When a debut novel is picked up by Reese Witherspoon for her book club, and optioned by 20th Century Fox with Reese attached to produce, you know it's worth a look. That's what happened to Something In The Water, a can't-put-it-down thriller written by this week's guest, Catherine Steadman (you need this for your beach holiday). Not only is Catherine now a bestselling novelist, but she's an actress too - you may remember her as Mabel Lane Fox in Downton Abbey, and she's also in the forthcoming supernatural drama The Rook. She's a great positive thinker, and she's here to share the wisdom she lives by.

The lovely and super-smart June Sarpong - broadcaster, campaigner and author - joins Hattie this week to share insight and advice from her book Diversify, now out in paperback. June draws on powerful research to highlight the challenges that so many people face - whether because of skin colour, social class, gender, disability or sexuality - and gives practical tips on how we can all unpick our own prejudices and step outside our social comfort zones.

Meet Sofie Hagen: comedian, fat activist and author of the new book, Happy Fat. She's here to tell us that many of our negative beliefs about fatness come from advertisers with an ulterior motive: to make money out of our desire to change ourselves. She speaks passionately about how she came to accept her own body (and how we can all do the same) and shares her heartfelt, bull***t-free advice on self-care.

Bee Wilson, food writer and author of new book The Way We Eat Now, joins us on this week's episode with advice on tweaking your eating habits to make them more varied, more satisfying and more nourishing. Bee has a smart, empathetic approach to food, delving into what eating really means to us and how dramatically it's changed in just a few decades - from the days when our grandparents would sit down for meat and two veg, to our current system of snacking, 'eating clean' and 'being naughty'. We're in a whole new world of food and the advertising that goes with it, and Bee is here to help us make sense of it.

The utterly charming Elizabeth Day, presenter of the How to Fail podcast and author of a new book by the same name, joins Hattie on Grazia Life Advice this week. We tend to hear a lot of talk about achievements and #goals these days, but what Elizabeth thinks are important are the things we mess up along the way - and how much those failures can teach us about who we are. She shared some very honest tales of her own 'mistakes', plus advice on how to turn your weaknesses into strengths.

This week, we're joined by Love Island 2018's breakout star Dani Dyer. She was famous on the show for being a wise-beyond-her-years agony aunt - doling out comforting hugs and tough love (depending on what was deserved...) to all the islanders. There's plenty of this wisdom in her new book, What Would Dani Do?, and unsurprisingly she's the perfect guest for Grazia Life Advice too.

Katharine Hamnett, fashion designer and queen of the slogan T-shirts (she coined the legendary 'Choose Life'), joins us on the podcast this week. An activist at heart, Katharine is passionate about politics, the environment and much more - she was the first designer to prioritise sustainability, way back in the 1980s. She's also a funny, sweary, self-deprecating guest with ingenious advice on keeping zen, being true to yourself and making a killer apple crumble.

Lynn Enright, author of Vagina: A Reeducation, joins us on Grazia Life Advice this week - so expect plenty of revelations about women's health, plus some fascinating discussion of the clitoris thrown in for good measure. Lynn is a journalist whose book brings together research not only into women's bodies, but also into how our pain, pleasure and safety has been neglected by sex education and healthcare. She's also a very funny guest, whose advice spans everything from tackling awkward conversations with your GP to preparing yourself for a carefree and happy old age.