Biologically speaking, there is no organ as vital or complex as the brain. And yet, the brain still remains somewhat a of a mystery-there’s a lot that even experts don’t know. Another troubling fact ...

If you’re someone who’s at risk for developing osteoporosis, you’re probably well-accustomed to receiving regular bone density tests. Dual-energy X-ray absorptiometry (DEXA or DXA) is a radiologic ...

A positron emission tomography (PET) scan is an imaging technique that uses small amounts of radioactive substances. Doctors may use PET scans in chemotherapy treatments for cancer. PET scans help ...

Positron emission tomography (PET) is a type of imaging scan that doctors might use when diagnosing and treating non-Hodgkin’s lymphoma (NHL). It can be useful for identifying and staging the cancer.

This screening test measures how well blood flows through your heart. It may be used to diagnose coronary artery disease or to assess damage caused by a heart attack. Share on Pinterest JazzIRT/Getty ...