Weekend Woman's Hour: Toni Collette, Adults regressing, The Archers special

Since her big break in Muriel’s Wedding 30 years ago, actor Toni Collette has graced our screens in a huge list of standout roles from The Sixth Sense to Hereditary, Little Miss Sunshine to Mickey 17. She joined Kylie Pentelow to discuss her latest film, Goodbye June. The emotional directorial debut from Kate Winslet tackles themes of love, loss and Christmas as a fractious family come together to sit vigil for the family matriarch, played by Helen Mirren.

From the very beginning of the NHS in 1948, Irish women were actively recruited to staff British hospitals. By the 1960s, there were around 30,000 Irish-born nurses - making up roughly one in eight of all nurses – yet their contribution has often gone unrecognised. A new book aims to change that. Based on dozens of interviews, it tells the story of Irish nurses in their own words. We hear from co-author of Irish Nurses in the NHS: An Oral History, Professor Louise Ryan, who spent years researching Irish migration and from Ethel Corduff, who came to England to train as a nurse, a career she spent 40 years in.

Relative Energy Deficiency in Sport, or RED-S as it's known, was once framed as a concern only for elite athletes. But as running culture intensifies alongside weight-loss jabs and healthy eating trends, RED-S has become more widespread. It's often hard to spot, but the long-term consequences can be devastating, impacting immune function, growth and fertility. Sports dietitian Renee McGregor and Jodie Pearlman, who experienced the condition first hand, joined Kylie to talk about the condition.

Why can adults seem to regress to childhood or teenage behaviours at Christmas? We discuss family dynamics and the kinds of behaviour that can re-surface with everyone under the same roof again. Guardian columnist Elle Hunt shares her own experience alongside Woman's Hour listeners, and psychotherapist Julia Samuel offers advice.

It's 75 years since The Archers first launched. Woman's Hour broadcast from Ambridge to celebrate the female characters who have helped this programme tackle some of the most challenging, contentious and sensitive issues affecting women. Nuala McGovern joined Felicity Finch, who plays Ruth Archer, for a behind-the-scenes tour, along with Technical Producer Vanessa Nuttall.

Presenter: Kylie Pentelow Producer: Annette Wells