The term "medical gaslighting" may be relatively new, but the practice has been affecting people's health outcomes for decades.

"Medical gaslighting is when concerns about your healthcare are being dismissed, they're not heard and they are minimized," says Stacey E. Rosen, senior vice president for Northwell Health's Katz Institute for Women's Health and co-author of "Heart Smarter for Women — 6 Weeks to a Healthier Heart."