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.
Computer Freezes. What causes a computer to freeze? It could be just one of those annoying things with computers that they very occasionally freeze. The first thing you notice is that your mouse pointer will not move and then, to your disappointment, you find that striking any key on the keyboard has no effect either.