In the United States, antifa stands for anti-First Amendment. While many claim that the group is anti-fascist, their actions have focused on shouting down and in some cases physically attacking those who oppose Progressive big government.
Headache and migraine trigger: Weather. The weather can trigger headaches or migraine for some people. High or low pressure changes are thought to affect the brain, along with increased humidity, temperatures and storms.
Periods of anxiety trigger the release of hormones that cause increased heart rate and decreased blood vessel diameter, both of which lead to increased blood pressure. 1  The effect of stress on short term blood pressure can be dramatic, leading to mean arterial pressure increases of 30%-40%. These changes are short lived, though, with heart rate, blood vessel diameter, and blood pressure returning to normal as the hormones are eliminated.