A viral video falsely labeled “Registered Republican Not Allowed to Vote!” suggests that Republicans were kept from voting in Louisiana’s recent primary. The person featured in the video — which has been viewed millions of times — was actually registered as a Democrat, so she couldn’t vote in the closed Republican primary.
Q: When is the human heart fully developed, and when are heartbeats audible during pregnancy?
A: A developing heart has all of its primary structures after about nine weeks of pregnancy. Some forms of ultrasound can detect cardiac activity in an embryo in the sixth week, but a heartbeat wouldn’t be audible until about 10 weeks on a Doppler fetal monitor.