Snack-food companies have long shown their adaptability to changing diets. How could the rise of appetite-suppressing drugs and fears about ultra-processed foods change the food we consume? How hearing aids and other lifestyle choices can reduce your risk of dementia (11:00). And why it’s time to revive the siesta (17:11).Listen to what matters most, from global politics and business to science and technology—Subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.  Hosted on Acast. See acast.com/privacy for more information.