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.
What Are U.S. Treasury Securities? U.S. Treasury securitiesâsuch as bills, notes and bondsâare debt obligations of the U.S. government. When you buy a U.S. Treasury security, you are lending money to the federal government for a specified period of time.