The Man Who Can't Get Fat
He used to be a chubby child, but at age 12 the fat dropped off "almost over night". He initially tried to eat more to gain weight, but it had no effect. Mr Perry, of Ilford in Essex, endured a decade of tests before the illness was diagnosed. It finally emerged that his body produces six times the normal level of insulin. Doctors have admitted that the condition would be a "slimmer's dream".
The Man Who Doesn't Feel Cold
Scientists can't really explain it, but the 48-year-old Dutchman is able to withstand, and even thrive, in temperatures that could be fatal to the average person.
The Boy Who Couldn't Sleep: stayed awake 24 hours a day for years
Rhett is awake nearly 24 hours a day, and his condition has baffled his parents and doctors for years. They took clock shifts watching his every sleep-deprived mood to determine what ailed the young boy.
After a number of conflicting opinions, Shannon and David Lamb finally learned what was wrong with their child: Doctors diagnosed Rhett with an extremely rare condition called chiari malformation.
"The brain literally is squeezed into the spinal column. What happens is you get compression, squeezing, strangulating of the brain stem, which has all the vital functions that control sleep, speech, our cranial nerves, our circulatory system, even our breathing system," Savard said.
The Girl Who is Allergic to Water.
Ashleigh, from Melbourne, Australia, is allergic to water of any temperature, a condition she's lived with since she was 14. She suffers from an extremely rare skin disorder called Aquagenic Urticaria - so unusual that only a handful of cases are documented worldwide.
The Woman Who Can't Forget.
McGaugh and fellow UCI researchers Larry Cahill and Elizabeth Parker have been studying the extraordinary case of a person who has "nonstop, uncontrollable and automatic" memory of her personal history and countless public events. If you randomly pick a date from the past 25 years and ask her about it, she'll usually provide elaborate, verifiable details about what happened to her that day and if there were any significant news events on topics that interested her. She usually also recalls what day of the week it was and what the weather was like.
The 40-year-old woman, who was given the code name AJ to protect her privacy, is so unusual that UCI coined a name for her condition in a recent issue of the journal Neurocase: hyperthymestic syndrome.
The Girl Who Eats Only Tic Tacs.
For reasons that doctors are unable to explain, Tic tacs are the only thing she can stomach, meaning she has to get the rest of her sustenance from a specially formulated feed through a tube.
The Musician Who Can't Stop Hiccupping.
Mr Sands, who is a backing singer in the group Ebullient, said the condition has hampered his career as he has only been able to perform four times. In the next couple of weeks --as of the day of the report--, doctors at Nottingham's Queen's Medical Centre will put a tube into his stomach to monitor acid levels and decide if keyhole surgery is possible.
The Girl That Collapses Every Time She Laughs.
Kay, of Barrow-upon- Soar, Leicestershire (UK), who was diagnosed with the condition five years ago, once collapsed more than 40 times in a single day. She said: "People find it very odd when it happens, and it isn't always easy to cope with strangers' reactions. "
Like most cataplexy sufferers, Ms Underwood is also battling narcolepsy - a condition that makes her drop off to sleep without warning. Narcolepsy affects around 30,000 people in the UK and about 70 per cent of them also have cataplexy.
The Woman Who is Allergic to Modern Technology.
The 39-year-old is so sensitive to the electromagnetic field (emf) or 'smog' created by computers, mobile phones, microwave ovens and even some cars, that she develops a painful skin rash and her eyelids swell to three times their size if she goes near them. As a consequence, Mrs Bird, a health spa manager, has transformed her home into an EMF-free zone to try and stay healthy. 'I can no longer do things that I used to take for granted,' Mrs Bird said. "My day-to-day life has been seriously affected by EMF".