In computer systems security, role-based access control (RBAC) is an approach to restricting system access to authorized users. It is used by the majority of enterprises with more than 500 employees, and can implement mandatory access control (MAC) or discretionary access control (DAC).
Fish such as tuna, halibut, and salmon are high in vitamin B6, which your body needs to make melatonin and serotonin. Other foods high in B6 include raw garlic and pistachio nuts.
Like whole wheat bread, whole wheat cereals help convert tryptophan into melatonin and serotonin. Research has shown that boosting serotonin levels can help promote sleep. Somer recommends any cereal with 100 percent whole grain, but says to avoid adding milk, because the protein in the dairy will block tryptophan from entering the brain.