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.
Slow Down. Brain freeze is that little extra you get when you eat or drink your favorite cold foods. If you have been susceptible to brain freeze in the past, be careful when consuming these goodies, take your time and enjoy them. This way you can thoroughly enjoy that icey treat and avoid that icey headache.