How do the elements in Groups 5A, 6A, & 7A form ions? They gain electrons to achieve noble gas configuration and form anions with a negative charge. What is the formula unit of Aluminum oxide?
Distal anhidrosis, although often subclinical, is detectable by clinical sudomotor testing in many patients with peripheral neuropathy. Diabetes mellitus, the most common cause of autonomic neuropathy in the developed world, typically impairs thermoregulatory sweating in a stocking and glove distribution. As the neuropathy progresses, asymmetric truncal anhidrosis or global anhidrosis may develop.
What Causes Narcolepsy? Narcolepsy with cataplexy is caused by a lack of the chemical hypocretin in the brain. Hypocretin is an important chemical for regulating wakefulness and rapid eye movement (REM) sleep. Narcolepsy without cataplexy includes most of the same symptoms, but its cause is unknown. Injuries to the hypothalamus and brain stem, tumors, and stroke are under investigation.