Genetics, Not Maternal Sickness, Drives Autism Risk

Summary: A large study analyzing over 1.1 million pregnancies found no strong evidence that maternal health conditions during pregnancy cause autism. Instead, nearly all previously reported associations between maternal diagnoses…

How We Filter Out Background Sounds When Speaking

Summary: Researchers have traced how the brain filters out background noise during speech using signals between the motor and auditory cortices. These milliseconds-long electrical signals, called auditory corollary discharge, originate…

Turning Gray: Stuck Stem Cells Turn Hair Gray

Summary: A new study sheds light on why we tend to go gray as we age. Researchers found melanocyte stem cells get stuck as we grow older, losing the ability…