This week on Alive and Kicking Clare McKenna talks to Mark Walton of Voya about the health benefits of Seaweed. She chats to policy advisor Andrew Wear about his book 'Solved|! How Other Countries Have Cracked the World's Biggest Problems and We Can Too'. Plus with the kids returning to school soon Clare chats with President of the Infectious Disease Society of Ireland Prof Karina Butler to find out if classroom clusters really are inevitable.