The most common causes of vertigo are inner ear infections or diseases of the ear such as benign paroxysmal positional vertigo ( BPPV), vestibular neuritis, and Meniere's disease. BPPV can occur when calcium builds up in canals of the inner ear, causing brief dizziness that lasts from 20 seconds to one minute.

The whole brain is active during dreams, from the brain stem to the cortex. Most dreams occur during REM (rapid eye movement) sleep. This is part of the sleep-wake cycle and is controlled by the reticular activating system whose circuits run from the brain stem through the thalamus to the cortex.

Chewing noises are probably the most common trigger, but other sounds such as slurping, crunching, mouth noises, tongue clicking, sniffling, tapping, joint cracking, nail clipping, and the infamous nails on the chalkboard are all auditory stimuli that incite misophonia.

It's called gonadotropin-releasing hormone, or GnRH for short. When GnRH reaches the pituitary gland (a pea-shaped gland that sits just under the brain), this gland releases into the bloodstream two more puberty hormones: luteinizing hormone ( LH for short) and follicle-stimulating hormone ( FSH for short).

The same is not true for anxiety attacks, where various issues can trigger anxiety attacks with some regularity. Panic attacks are so unusual that they can be caused by fear of panic attacks - or simply by thinking about your panic attacks. They can be caused by exercise, by dehydration, and by nothing at all.

Many cases of narcolepsy are thought to be caused by a lack of the brain chemical hypocretin (also known as orexin), which regulates sleep. This deficiency is thought to result from the immune system mistakenly attacking parts of the brain that produce hypocretin.

2. Diet Triggers for IBS Diarrhea Too much fiber, especially the insoluble kind you get in the skin of fruits and vegetables. Food and drinks with chocolate, alcohol, caffeine, fructose, or sorbitol. Carbonated drinks. Large meals. Fried and fatty foods.

Types of Triggers in Oracle DML Trigger: It fires when the DML event is specified ( INSERT/ UPDATE/ DELETE) DDL Trigger: It fires when the DDL event is specified ( CREATE/ ALTER) DATABASE Trigger: It fires when the database event is specified ( LOGON/ LOGOFF/ STARTUP/ SHUTDOWN)