evidence: - COVID-19 vaccines lower the risk of life-threatening heart problems and other serious health issues. [...] It’s important to remember that any vaccine can cause side effects. These are normal signs that your body is making protective antibodies. Side effects of COVID-19 vaccination are generally mild — discomfort at the injection site, fatigue, and muscle aches — and go away in a few days. Many people have no side effects at all. Serious side effects are very uncommon. Myocarditis has been linked with other vaccines, such as those that prevent influenza (flu), smallpox, and shingles.6 [...] Only about 1 out of 100 cases of heart inflammation linked with COVID-19 vaccines is life-threatening.5 An analysis of 627 cases of vaccine-linked myocarditis worldwide showed that 626 fully recovered — and one fatality.7