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.
Thankfully there are certain supplements you can take which can help you fall asleep and stay asleep: 1. Vitamin D -- A deficiency in vitamin D affects your body's ability to regulate circadian rhythms (your body's clock). With your body's clock not running correctly, it's unable to signal the sleep hormones involved in making you fall asleep and wake up.
Studies have shown that maintaining sufficient levels of Vitamins B3, B5, B6, B9 and B12 particularly help in achieving good sleep. Among other affects, the group of B Vitamins is involved in regulating the body's level of tryptophan, an amino acid important for maintaining healthy sleep (covered later).