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.
Infectious diseases can also cause brain atrophy due to the pathogens attacking brain cells or due to the brainâs inflammatory response to its presence. Stroke can cause brain atrophy by interrupting normal brain blood flow.