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For decades, autism was believed to overwhelmingly affect boys. Yet a big new study out of Sweden provides perhaps the best evidence yet that girls aren’t less likely to be autistic — they’re just less likely to be diagnosed young. (Lisa Jarvis, 2/26)

The miseries of aging are more linked to late-life infections than was previously understood. (Donald G. McNeil Jr., 2/26)

Watching the measles outbreak spread to North Carolina because of unvaccinated people made me angry. Then I remembered: I was vaccine-hesitant once. (Joel Burgess, 2/22)

Trump is making it impossible for trans children, even in blue states, to access the care they deserve. Democrats need to start acting – with urgency. (Sara Pequeno, 2/26)

Walk into any drugstore, natural market, or Costco and you’ll find a dazzling array of supplements promising everything from sharper thinking and stronger immunity to calmer nerves and balanced hormones. (Elise Felicione, 2/26)