Can smiling during running improve your marathon time? Will an old age app help you make better resolutions? And is there real science behind the Coffee Nap? Will and Mango examine big and little ways to improve your 2018, including why you'll probably need to carry a plunger around with you in the New Year. Featuring Mango's wife, Lizzie.

Does Listening to Music Make You Healthier? with Daisy Fancourt
40:15

9 Absurd Inventions You (Probably) Won't See on Shark Tank
18:18

9 Map-Slapping Border Disputes
29:15