Editing 1926 in science (section)

==Medicine==
* First vaccine for [[pertussis]].
* American [[biogerontologist]] [[Raymond Pearl]] publishes his book ''Alcohol and Longevity''<ref>{{cite book|first=Raymond|last=Pearl|year=1926|title=Alcohol and Longevity|url=https://archive.org/details/b2981635x|publisher=Alfred A. Knopf|location=New York|isbn=978-0-405-13615-3}}</ref> demonstrating that drinking [[alcohol (drug)|alcohol]] in [[alcohol consumption and health|moderation]] is associated with greater longevity than either abstaining or drinking heavily.<ref>{{cite book|publisher=Oxford University Press|isbn=9780199655786|last=Boyle|first=Peter|author2=Boffetta, Paolo|author3=Lowenfels, Albert B.|author4=Burns, Harry|author5=Brawley, Otis|author6=Zatonski, Witold|author7= Rehm, Jürgen|title=Alcohol: Science, Policy and Public Health|year=2013|page=14}}</ref>
* Finnish physician [[Erik Adolf von Willebrand]] first describes ''Hereditär pseudohemofili'' ("Hereditary pseudohemophilia"),<ref>{{cite journal|last=Von Willebrand|first=E. A.|title=Hereditär pseudohemofili|journal=Finska Läkaresällskapets Handlingar|date=1926|volume=68|pages=87–112|language=Swedish}}</ref> later known as [[Von Willebrand disease]].
* German-Jewish dermatologist [[Walter Freudenthal]] gives the earliest clear [[histopathological]] description of keratoma senile ([[actinic keratosis]]), distinguishing it from verruca senilis ([[seborrheic keratosis]]), in [[Breslau]].<ref>{{cite journal|title=Verruca senilis und Keratoma senile|journal=Archiv für Dermatologie und Syphilis|year=1926|volume=152|issue=2|pages=505–528|doi=10.1007/BF01828395|last1 = Freudenthal|first1 = Walter}}</ref>
* The description '[[glioblastoma]] multiforme' is introduced by [[Percival Bailey]] and [[Harvey Cushing]].<ref>Bailey; Cushing (1926). ''Tumors of the Glioma Group''. Philadelphia: Lippincott.</ref>