Jack meets the world memory champion and a man who can remember every single day of his life.

Jack meets a man who is unable to recognize faces - even his own.

Jack joins amputees to find out why they still feel sensations in limbs that are no longer there.

Jack meets a man who has a rare condition where his brain conjures up bizarre hallucinations.

Jack meets a woman who has lost all sense of time and reveals how time can be elastic.

Meeting people with synaesthesia; multisensory gastronomy.