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.
Sleep researchers believe that infant sleeping patterns is a âsmarterâ way to sleep than typical adult sleeping. They theorize that light sleep helps the brain develop because the brain doesnât rest during REM sleep. In fact, blood flow to the brain nearly doubles during REM sleep.