In this episode, we examine how nutrition can help reduce age-related loss of muscle mass and strength, thereby reducing frailty. We'll hear about the causes of delirium and meet the researchers who want to raise awareness of the condition within healthcare to help reduce misdiagnoses with dementia. Finally, we investigate a disease that is so prevalent you could fill Croke Park with the people in Ireland who suffer from it. Age-related Macular Degeneration, or AMD, is the leading cause of blindness in Ireland. We catch up with the researchers who are working to find the causes of this disease and hope to develop cures for it.

Fungi are an ancient form of life, existing long before the first amphibians, reptiles or mammals roamed the planet. There are estimated to be well over 1 million species of fungi worldwide – some can be poisonous and destroy trees, others can be very healthy to eat or can help crops absorb nutrients. Despite several mass extinction events, fungi are the one form of life that always survive, and in this episode, Jonathan investigates what ancient fungi can tell us about historical climate events and how studying them might help us predict what will happen in our planet's future due to climate change.