It is widely known that stressful holidays often trigger cardiovascular events. A new study reveals birthdays are also associated with a higher incidence of heart attacks, stroke and transient ischemic attacks (TIAs) -- also known as mini-strokes. The new report observes that the incidence of these cardiovascular occurrences is greater on birthdays than any other holiday, including Christmas.Compared to the expected daily average, strokes, TIAs and heart attacks are 27 percent more likely to occur on birthdays, according to emergency room statistics. The risk is especially great in those with high blood pressure. Referred to as an acute psychosocial stressor, birthdays are a time to watch the intake of alcohol and fatty foods, avoid strenuous activity and stick to medication schedules.
Steady high temperatures and humidity have an adverse effect on the cardiovascular system, often resulting in higher risk of heart attacks in the elderly. Researchers studying heart attack rates in Athens, Greece, found an increase of mortality in people over age 70-- linked directly to a consistent rise in temperature and humidity. The heat in 2001 may have been responsible for 3,126 deaths caused by heart attack. The body suffers much stress in high temperatures, which takes its toll on the circulatory system. 
