Скачать с ютуб %$?# Allergies! в хорошем качестве

%$?# Allergies!

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate It's the season for sneezin'! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it's also about sneezing, watery red eyes, and a runny nose, thanks to allergies. In this week's video, you'll learn why we get allergies, how our immune system turns against us to attack pollen and pets, and why allergies seem to be on the rise in developed nations. Hygiene hypothesis: http://en.wikipedia.org/wiki/Hygiene_... Spread of allergies in developed nations: http://www.nature.com/nature/journal/... TGF-beta and allergies: http://bit.ly/1HXjm05 Microbiome and allergies: http://www.bbc.com/news/health-28934415 Gut microbes and peanut allergy in mice: http://news.sciencemag.org/biology/20... Have an idea for an episode or an amazing science question you want answered? Leave a comment below! Follow on Twitter:   / okaytobesmart     / jtotheizzoe   Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram:   / jtotheizzoe   ----------------- It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.DFollow me on Twitter: @jtotheizzoe Email me: itsokaytobesmart AT gmail DOT com Facebook:   / itsokaytobesmart   Google+ https://plus.google.com/+itsokaytobes... For more awesome science, check out: http://www.itsokaytobesmart.com Produced by PBS Digital Studios:    / pbsdigitalstudios   Joe Hanson - Creator/Host/Writer Joe Nicolosi - Director Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer Andrew Matthews - Editing/Motion Graphics/Animation Katie Graham - Director of Photography John Knudsen - Gaffer Dalton Allen - Post-Production Intern Theme music: "Ouroboros" by Kevin MacLeod Other music via APM Stock images from Shutterstock, stock footage from Videoblocks ----------------- Last week's video: How Many Stars Are There?    • How Many Stars Are There?   More videos: Why Does February Have 28 Days?    • Why Does February Only Have 28 Days?   Why Vaccines Work    • Why Vaccines Work   Why Are Some People Left-Handed?    • Why Are Some People Left-Handed?   Where Does the Smell of Rain Come From?    • Where Does the Smell of Rain Come From?