Internet of Things (IoT) is an ecosystem of connected physical objects that are accessible through the internet.
Most panic attacks last for between 5 and 20 minutes. They can come on very quickly, and your symptoms will usually peak within 10 minutes. Sometimes you might experience symptoms of a panic attack which last for up to an hour.
I've had some long attacks though in the past. Like my worst panic attack ever which is in my diary. It was an intense attack that lasted for probably well over an hour. Anxiety attacks and panic attacks can feel a lot alike and also can go hand in hand in waves like slugzzz was saying.