Interoception is the body’s internal alert system that gathers all the information from our senses, to remind us of our basic survival needs such as rest, hydration and fuel, warmth, safety, as well as registering our emotional state – anxiety, excitement etc. It is one of our eight senses.

If we have poor interoception (see hyposensitivity) we lack sensitivity to some or all of these useful mental sticky notes, putting our health at risk, due to the lack of sensation in one or more senses e.g. smell, taste, hearing, sight, hunger, toilet or sleep needs, for instance. Not all autistics and ADHDers have poor interoception, and vice versa, although poor interoception is higher for us than in neurotypical people.