a native hydrous magnesium silicate, sometimes with a small amount of aluminum silicate; used as a dusting powder. The inhalation of talc is associated with a wide variety of respiratory disorders.
Factors contributing to poor sleep include vitamin and mineral deficiencies. Magnesium deficiency can cause insomnia; lack of potassium can lead to difficulty staying asleep; and vitamin D deficiency has been linked to excessive daytime sleepiness.
Medication, warm baths, exercise, and learning ways to relax can help. Rapid eye movement sleep behavior disorder, also known as REM sleep behavior disorder, is another condition that may make it harder to get a good night's sleep. REM sleep is the most active stage of sleep when dreaming often occurs. Be careful about when and how much you eat. 2  Large meals close to bedtime may keep you awake, but a light snack in the evening can help you get a good nightâs sleep. 3  Stay away from caffeine late in the day. 4  Caffeine (found in coffee, tea, soda, and hot chocolate) can keep you awake.