At-home sleep tests are convenient and cheaper than lab studies. But there are some major differences you should know before buying. Taylor Leamey Former Senior Writer Taylor Leamey wrote about all ...

New research highlights the potential importance of ordering more than one type of antinuclear antibody (ANA) test when clinicians are screening for lupus. ANAs are a type of antibody that are found ...

Nearly all people who have systemic lupus erythematosus (SLE) test positive for antinuclear antibody (ANA), but a small number can develop lupus without ANA, known as seronegative or ANA-negative ...

Mohana Ravindranath is a freelance health, science, and tech journalist and a 2025 Association for Health Care Journalists fellow. She was previously a Bay Area health tech correspondent for STAT.

The start-up Function will send practically anyone to a lab for extensive medical testing, no physical required. Is that a good thing? By Kristen V. Brown As Kimberly Crisp approached middle age, ...