When you give a thumbs-up and notice your digit bends backward at an unusually dramatic angle, you’re witnessing what medical professionals call “distal hyperextensibility” — though most people know ...

Some people have thumbs that are hypermobile. This means they bend backward beyond the typical range. The medical term for hitchhiker’s thumb is distal hyperextensibility. It is also known as Z-shaped ...

Don’t hold your breath for a bendy iPhone, however: Apple files thousands of patents, most of which never turn into actual products. Patent filings are often used to bar rivals from producing products ...