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Body regions
Every oddity has one primary region and sometimes a second. Eleven regions cover the whole body.
- Brain 49 Things the brain does on its own: memory glitches, sleep events, perception errors, unusual wiring. Alice in Wonderland syndrome · Ambidexterity · ASMR
- Nerves 26 The peripheral nervous system: signals that go wrong, cross over, or fire when they should not. Babinski reflex · Brain freeze · Congenital insensitivity to pain
- Eyes 38 Things you can see that are not out there, and structural quirks of the eye. Accommodation reflex · Afterimages · Blue arcs of the retina
- Ears 17 Sounds from inside the head, pressure, balance, and the muscles of the middle ear. Attached and free earlobes · Autophony · BPPV
- Mouth and throat 19 Tongue tricks, saliva, the palate, tonsils, and the throat. Bifid uvula · Cloverleaf tongue · Gag reflex
- Skin and hair 15 Goosebumps, blushing, wrinkling, marks, spots, and hair. Blushing · Dermatographia · Fordyce spots
- Muscle 27 Muscles under unusual control, muscles that twitch, and muscles some people do not have. Benign fasciculations · Diastasis recti · Flaring your nostrils
- Bones and joints 11 Cracking, bending, extra bones, missing bones, and joint flexibility. Accessory ossicles · Cervical rib · Clinodactyly
- Internal organs 8 The gut, lungs, kidneys, bladder, and glands. Cold diuresis · Extraordinary breath-holding · Hiccups
- Heart and blood 10 Heart rate, blood pressure, blood flow, and fainting. Diving reflex · Heart rate control · Seeing stars when standing up
- Whole body 12 Genetics, development, and things that involve the whole organism. CCR5-delta32 · Chimerism · Situs inversus
Brain