The Himalayas was at an ocean, but after geological changes and exposure to high temperatures, the ocean gradually disappeared. A large amount of salt (NaC) settles on the bottom, and after 200 million years of geological and high temperature extrusion, underground minerals and salt eventually form crystalline rock salt. 3. When the crystalline salt is heated, it can release negative ions. While purifying the air, it can effectively activate various enzymes in the human body, reduce blood sugar, blood pressure and cholesterol, improve microcirculation, promote metabolism and strengthen immunity. 2. After turning on the light, "Schumann Wave" releases anti-radiation and comforts the. Produced at the same frequency as the human body - Schumann waves, it emits warm light through the spectrum emitted by the translucent crystal structure, which can relieve stress, stabilize mood and promote sleep. 1. Range of applications It can be placed on the head of the bed in bedrooms, study rooms and living rooms, which can effectively relieve your fatigue and relax your body and your. Also known as crystalline salt, it releases natural negative ions and inhibits radiation