Eighteen cases of cyclosporiasis have been reported in Massachusetts between May 1 and July 1, adding to a rise in the outbreak that is spreading across most of the midwestern United States.

A blood test that helps diagnose Alzheimer's might also forecast if healthy older adults will develop symptoms. A new study links high levels of so-called p-tau217 to a high risk of cognitive impairment in five or 10 years. Scientists stressed it's too soon t…

As cannabis use becomes more widespread, we should be clear-eyed about some of the potential long-term effects.

Several private schools, including Spence and Dalton, are on the new list, as well as the Metropolitan Museum of Art.

Bond Legal said it is confidentially gathering information from families in the area.

The Ebola outbreak in eastern Congo is now the fastest-growing one in history and new challenges keep emerging. A strike this week by unpaid workers at an Ebola treatment center could spark further unrest, even as a study begins of two badly needed treatments…