Not all headaches represent migraines, and migraine is not the only condition that can cause severe and debilitating headaches. For example, cluster headaches are very severe headaches that affect one side of the head in a recurrent manner (occurring in a cluster over time).
The United States government is the largest issuer of debt securities, and its bonds are considered the safest fixed-income investments available to your customer.
Why does the U.S. Government have debt? The U.S. Government is just like a business. The Government has to provide services for the people of the United States such as military protection, education and health programs, the space program, and social services programs. It also needs money to buy supplies and equipment.