Click here to see more videos: https://www.youtube.com/channel/UCpJmBQ8iNHXeQ7jQWDyGe3A?sub_confirmation=1 When the freezing cold temperatures hit outside......why does it affect our breath when we exhale? Click here to see more videos: http://www.m301.me/lifenoggin Life Noggin is a weekly animated educational series. Whether it's science, pop culture, history or art, we explore it all and have a ton of fun doing it. Follow Us! https://twitter.com/LifeNoggin https://facebook.com/LifeNoggin https://www.LifeNoggin Life Noggin Team: Animation & Designed by: http://www.jmccartney3d.com/ Voiced by: http://youtube.com/patdoesit Produced by: http://www.IanDokie.com Written by: https://www.youtube.com/coconutcab Sources: http://www.academia.edu/4088493/Lecture_3_gas_exchange http://www.nhlbi.nih.gov/health/health-topics/topics/hlw/whathappens