If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

Justin Jaffe is the Managing Editor for CNET Money. He has more than 20 years of experience publishing books, articles and research on finance and technology for Wired, IDC and others. He is the ...

New federal guidance is expanding testing for cervical cancer with a self-collection method. Dr. Mara Gordon speaks to NPR about why this option might become popular for screening for HPV.

Stability studies measure how medical devices respond to environmental stresses such as temperature, humidity, light, and ...