A healthy person usually has a platelet count of 150,000 to 400,000. You have thrombocytopenia if your number falls under 150,000. If you're wondering what the long name means, here's how it breaks down: thrombocytes are your platelets and penia means you don't have enough of something.
The Perseids are active from July 13 to August 26, according to the American Meteor Society, a nonprofit scientific organization that supports the research of astronomers, but the meteor shower peaks between August 12-13.
The Perseids as seen in southern Germany in 2015. This year, the shower will peak on Thursday night and Friday morning, when as many as 200 meteors per hour will fill the night sky. Credit Daniel Karmann/DPA, via Agence France-Presse â Getty Images.