People with post-traumatic stress disorder or related conditions were more likely to develop autoimmune illnesses.

By Nicholas Bakalar

By  PERRI KLASS, M.D. 

True bilingualism is a relatively rare and a beautiful thing, and by “true,” I mean speaking two languages with the proficiency of a native — something most of us will only dream of as we struggle with learning languages in school and beyond.

There are few group projects in medical school — which is strange when you considerthat there are few solo practitioners in the real world.

Thousands of people visit the country each year for what is known as medical tourism.

By WILLIAM NEUMAN for The New York Times

If you live with breast cancer, love someone with breast cancer or worry about your risk for breast cancer, you are part of a global community of women and men whose lives have been touched by the disease. The New York Times asked its readers to share insights from their experiences with breast cancer.