Allbright Club co-founder Debbie Wosskow OBE picks this week's book to learn more about how friendship affects our health and what we can do to build and maintain real relationships in a post-lockdown, digital age. Plus... Why people in large families have fewer friends. How social media makes friendships last longer but still follows the rule of 150 when it comes to the number fo friends we have online. The difference between male and female friends. Which friends are replaceable and why. How business and religion survives and fails through friendship.