Body odor is usually normal, but when it's extreme it can be a sign of something gone wrong. To get your 23andMe kit, go to: www.23andme.com/SciShow Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Tim Curwick, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: Trimethylaminuria ghr.nlm.nih.gov/condition/trimethylaminuria rarediseases.org/rare-diseases/trimethylaminuria/ dmd.aspetjournals.org/content/29/4/517.short www.ncbi.nlm.nih.gov/pmc/articles/PMC3848652/ www.bmj.com/content/307/6917/1497.5 jamanetwork.com/journals/jamadermatology/fullarticle/410589 omim.org/entry/136132 www.ncbi.nlm.nih.gov/books/NBK1103/ Isovaleric acidemia ghr.nlm.nih.gov/condition/isovaleric-acidemia rarediseases.org/rare-diseases/acidemia-isovaleric/ www.omim.org/entry/243500 newenglandconsortium.org/for-professionals/acute-illness-protocols/organic-acid-disorders/isovaleric-acidemia/ www.ncbi.nlm.nih.gov/pubmed/19210957 www.ncbi.nlm.nih.gov/pubmed/3137519 Hypermethioninemia ghr.nlm.nih.gov/condition/hypermethioninemia www.sciencedirect.com/science/article/pii/S1096719213002710 www.omim.org/entry/250850 www.ncbi.nlm.nih.gov/pmc/articles/PMC1288087/ ---------- "Mister Exposition" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License creativecommons.org/licenses/by/3.0/ ---------- Images: commons.wikimedia.org/wiki/File:Trimethylamine-3D-balls.png commons.wikimedia.org/wiki/File:L-Leucine.svg commons.wikimedia.org/wiki/File:Isovalerians%C3%A4ure.svg commons.wikimedia.org/wiki/File:Sulfur-sample.jpg commons.wikimedia.org/wiki/File:Nervous_system_diagram_unlabeled.svg

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