Dava Sobel and the women 'computers' at Harvard Observatory who changed the understanding of the stars, eating disorders in older women, Miriam Margolyes and vegan mums.

Dava Sobel, bestselling author of Longitude speaks to Jane about her new book The Glass Universe. It tells the story of the women employed as calculators or "human computers" at the Harvard Observatory in the 19th century. Their discoveries changed our understanding of the stars and the history of astronomy.

Eating Disorders and Older Women: One in 28 women aged 40 to 50 are thought to be living with illnesses like anorexia or bulimia according to new research. Tom Quinn from Beat, the UK's eating disorder charity talks to Jane about the importance of tackling the stereotype that it is a young woman's illness.

'The Chain' where a guest chooses the woman who has inspired her most. Yesterday the philosopher MM MCabe nominated Miriam Margolyes, and today Miriam talks about ageing, Harry Potter and being the naughtiest girl in the school.

Vegan Mums: the number of vegans in the UK has increased more than threefold in the past 10 years - but where did it all begin? Joanne O'Connell, author of The Homemade Vegan, and Dilys Cluer, a vegan since 1948, look back at the early days of vegan living when resourcefulness and creativity were key to raising a healthy family.

Presented by: Jane Garvey

Produced by: Caroline Donne.