Why we weigh more than we did in the 80s and why is snot green?

Seal with a snotty nose
Cat, Chantelle and Tim bring you this week’s installment of Boiling Point.
White, yellow, green – ever wondered why your snot turns green when you have a really nasty cold?
 
More weight, similar diet – according to a new study, we weigh more than in the 1980s, although we eat about the same amount of calories.
 
Listen to the answers on the podcast:
https://goo.gl/fuPQBs | https://wp.eastsidefm.org/boilingpoint/#
 
Source:
https://www.sciencedirect.com/science/article/abs/pii/S1871403X15001210
https://www.webmd.com/allergies/features/the-truth-about-mucus?fbclid=IwAR0axeQnE2D2Se4Y2fsr0e7S1LZWCOzpYnxGaR0wbIw8QRPjUSdWK1eX438#1