Young stars of social media share lessons in life from their grandmothers. What happens when the youth-dominated, image-obsessed world of social media gets a dose of hard-learnt life-advice from older women? The BBC's #GrannyWisdom week will see stars of Instagram, YouTube, Snapchat and Facebook posting conversations with their grandmothers, getting their wisdom on topics from love to mental health to overcoming adversity. Featuring highlights from those social media posts as well as discussions between the social media stars about what they learned from the older generation, this programme explores the lessons, tensions and reaction to this big, global social media experiment. Presented by YouTuber Hannah Witton, with contributions from social media stars Ross Smith, Taty Ferreira, Anushree Fadnavis, Megan Gilbride, Steven Chikosi and Kubra Sait. Also listen out for Hannah's, Ross's and Anushree's grannies.