"Seeing is believing," the founder of lab company Truvian told me. So I tried its tabletop blood testing device—which promises results in 30 minutes—for myself.

Puerto Rico has a 10,000-square-foot exhibit area at the International Tourism Fair, hosted by IFEMA Madrid.

That could be your life, if you choose to retire in Puerto Rico — and one of these homes, which are currently on the market, ...

Until 11:59 p.m. PT on Jan. 23, book one-way tickets on Southwest for as low as $69. This deal includes travel between Feb.

Puerto Rico ranks high on my list of great vacation destinations for a lot of reasons, including its rich history and culture ...