The string test, which is also called the Entero-test, is a test used to find parasites in the upper part of your gastrointestinal tract. To perform the test, you swallow a string. When the string is ...

WHEN Joseph Conlon was an undergraduate in the early 2000s, he avoided popular science accounts of string theory because he wanted to engage with it on a technical level, without preconceptions. It ...

NHS England rolled out “heartburn health checks” across “dozens” of pharmacies yesterday. These are designed for people with persistent acid reflux or heartburn and will test for Barrett’s oesophagus, ...