New blood tests that detect early changes associated with Alzheimer's disease are making diagnosis easier and more accessible ...

Learn what andropause is, how doctors diagnose low testosterone, the blood tests used to confirm it and treatment options ...

A cardiac stress test is a key tool cardiologists use to detect heart disease early, assess symptoms and guide next steps for better long-term heart health. AT A GLANCE: Cardiac stress tests are an ...

An LAPD criminalist said she used DNA extracted from Rivas Hernandez's toenail to compare with blood evidence collected from ...

Drug-resistant Neisseria gonorrhoeae (the bacterium that causes gonorrhea) has become one of the most urgent antimicrobial-resistant threats to public health worldwide. Clinicians expect to be ...

Wait at least nine days after unprotected sex to take a pregnancy test. The best time to take a pregnancy test is the first day after a missed period. You should wait 21 days after unprotected sex if ...