Sam Miller

Toddler Has Menstrual Cycle at 17 Months

Toddler Has Menstrual Cycle at 17 Months

A 17-month-old girl experienced vaginal bleeding each month for 3 months before a clinical team uncovered an unusual diagnosis. The patient was diagnosed with isolated premature menarche, “a rare and benign condition characterized by vaginal bleeding without other signs of pubertal activation” in girls younger than 8 years — a diagnosis of exclusion, wrote Dewi…

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A 2nd grader designed an adorable mascot for NASA’s Artemis II mission

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. Artemis II astronauts have entered final preparations for their historic trip around the moon, but they won’t be flying alone. While speaking recently at NASA’s Kennedy Space Center in Cape Canaveral, Florida, mission commander Reid Wiseman revealed the mission’s…

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