The Progressive Era. During the period known as the Progressive Era (1890s to about 1920) the U.S. government became increasingly activist in both domestic and foreign policy.
One possible link between brain freeze and other headaches is local changes in brain blood flow. If further research confirms all these types of headaches are caused by blood flow changes, new drugs that block widening of the blood vessels - called vasodilation - could improve treatment for sufferers.
You can relieve brain freeze pain by quickly warming the roof of your mouth (also referred to as the soft palate and hard palate; the hard palate being the part with bone, and the soft without) after it's already been cooled.