Learn why new COVID-19 variants may affect test accuracy, and which PCR tests are involved.

Breast cancer screening in women who have survived childhood cancer can reduce deaths by half. Learn about the risk and recommended screening methods.

Researchers found no evidence that radiation exposure from the Chernobyl disaster resulted in genetic changes passed down from parent to child.

No, they're not made in a factory.

DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms.

A new study from the Children's Hospital of Philadelphia found there might be important genetic differences in the causes of attention-deficit hyperactivity disorder (ADHD) between patients who are Black and those who are White.

Oncology is the field of medicine that addresses cancer. Learn about the oncology team, diagnosis, and treatment. Reviewed by a board-certified physician.

BRAF mutations are present in many melanomas as well as some lung cancers, colon cancers, and more. Learn about the basics, testing, and treatment.

A retrovirus is a type of RNA virus that replicates itself by reverse-coding its genes into DNA and tricking the cell into copying the genes.

Tumor agnostic treatment for cancer refers to therapies used for several different types of cancer. Reviewed by a board-certified physician.