In a July 31 television interview, Democratic presidential candidate Marianne Williamson inaccurately implied there might be a connection between vaccines and higher reported rates of childhood chronic diseases. She is correct that reported rates of chronic conditions in kids have increased over the last several decades, but there is no scientific evidence to suggest vaccines are the cause.
Stories by Jessica McDonald
SciCheck Editor
Politics of Gun Violence
FactChecking July’s Round Two Debate
FactChecking the Second Democratic Debate
When Are Heartbeats Audible During Pregnancy?
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.
FactChecking the Mueller Hearings
Unpacking Biden’s and Trump’s Big Cancer Promises
Does Wind ‘Work’ Without Subsidies?
President Donald Trump has repeatedly questioned the economics of wind energy, saying that wind “doesn’t work” without subsidies. Experts have differing assessments of that. By some metrics, wind power is already competitive with fossil fuels without subsidies. But other measures don’t come to the same conclusion.