The PayPal cofounder has a new mobile app to help couples get pregnant.
Monitoring acetone in breath could tell dieters whether their efforts are paying off.
A unique class of RNA drugs could bring new treatments to cancer and other diseases.
Researchers manipulate mouse neurons to create a false memory; the work could lead to a better understanding of how memories form.
Brain scans, blood samples, and other diagnostic tests could one day direct doctors to the best treatments for depression patients and uncover the biological basis of the condition.
Technologies that can pull tumor cells from patients’ blood are giving researchers an unprecedented look at cancer.
A layer-by-layer fabrication tool lets researchers quickly form complicated biological tissue in three-dimensional space.
Carrier screening can prevent disease in families, but some doubt that it can change population-level incidence of disease.
Monsanto and others look to RNA interference to fight widespread bee-killing mites.
A mixture of three cell types self-assembles into a liver bud that can be seen with the naked eye.