Organs developed in monkeys or pigs could be the future of organ donation, but the process carries ethical concerns. What exactly is your smart voice assistant listening for when it sits in your home? American middle-aged people are physically and mentally more unhealthy than past generations, and it has ties to stress. Also, on today's show: innovations in urban farming as the fields move indoors and upwards; people who declare themselves and their land independent of their country can make things difficult for the host nation; small, safe doses of electricity could power your smartwatch throughout the day so you can still wear it at night to track sleep patterns.