The healing powers of the great outdoors have never been more valued than now, so Ellie Harrison visits Gloucestershire to discover just how our countryside can provide the perfect tonic in troubled times. From forest bathing to wild swimming, she immerses herself in nature. We also take a restorative visit to the Countryfile archives to rediscover the health-giving potential of the UK’s green havens. John Craven finds out how nature helped wartime wounds, Anita Rani visits a farm giving respite to refugees, and Steve Brown learns about the healing power of goats’ milk.