If we are not talking about dizziness associated with migraines, alcohol or certain medications, the most common type of dizziness is
benign paroxysmal positional dizziness
(DPPG ) This complex name is deciphered simply:
DPPG is associated with a small “breakdown” in the organ, which allows us to control the position of the body in space: in the vestibular apparatus. This organ consists of three semicircular tubules filled with special fluid, walled up in the skull. When a person moves his head, the fluid moves, presses on the membrane and thus signals the brain that the body has changed position in space.
Near the tubules is the otolithic apparatus.
These are two fluid-filled sacs inside which there are sensitive cells with cilia. Calcium carbonate crystals, otoliths, hover above sensitive cells in a special gel. When a person moves, the crystals are displaced, press on the cilia and the signal about the beginning and speed of movement goes to the brain.
The problem arises if the otoliths “fall out” of their sacs and fall into semicircular tubules, which also have sensitive cells with cilia. Because of this irritation of these cells, an illusion of movement is created, although a person merely turned his head - this is dizziness.
In older people, BPH can occur due to age-related disorders, but for most patients the reason cannot be determined: once a person gets out of bed - and he suddenly begins to feel dizzy.