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.
(An aside: the national debt is made up of publicly held debt and money that the government owes to itself. Boehnerâs $16 trillion number is this âgross debtâ figure. About $11.5 trillion is public debt and the rest comes from bonds held by Social Security, Medicare and other trust funds.