Himalayan Salt Lamps are made from pieces of Himalayan salt crystals. They serve as beautiful interior decorations and act as natural sources of light. They have been known to help allergies, breathing and reduce stress. Over-exposure to positive ions reduces the brain’s blood and oxygen supply, which can lead to irregular sleeping patterns. The negative ions from a Himalayan salt lamp are said to reverse this effect, making them a popular sleep aid. Also, in direct relation to chromotherapy, the soothing light can help people who suffer from insomnia.