The Danish coined the term Glymphatic System in recognition of its dependence upon glial cells, along with the similarity of its functions to those of the body’s peripheral lymphatic system. Two independent studies reportedly have shown that the lymph vessels in the meninges (three layers of protective coverings) of the brain, connect with the glymphatic system. When the glymphatic system is not functioning properly insomnia is usually present. It appears that sleep disturbances impact how this system operates. It also appears that sleep deprivation can cause malfunctions in clearing the protein aggregates away, which has implications for an increased risk of Alzheimer’s.