![SA Health & Medicine Vol 3 Issue 5](https://static.scientificamerican.com/sciam/cache/file/2CC0ECF0-E5DB-46EE-9D0F24BFA139E8C6_source.jpg?w=300)
Volume 3, Issue 5
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Features
Trailblazing Transgender Doctor Saved Countless Lives
After transitioning in 1917, Alan L. Hart helped alter medical history
A New Era of Designer Babies May Be Based on Overhyped Science
Genetic testing with IVF is being marketed as a means to choose a healthy embryo, despite questions about the soundness of the technology
Why Sports Concussions Are Worse For Women
As women’s soccer, rugby and other sports gain popularity, scientists are racing to understand how the female brain responds to head injury