Bradycardia can be caused by: 1  Changes in the heart that are the result of aging.  Diseases that damage the heart's electrical system. These include coronary artery disease, heart attack, and infections such as endocarditis and myocarditis.
Portland Weather In May. The highest recorded temperature in May for Portland for the past 70 years was 100 degrees Fahrenheit, most recently measured on May 28, 1983, and the normal high is 67.
Portland because of the gorge, I guess, is more overcast and then the clouds burn off as the day goes on. We don't have that effect here quite as much. It is rainy typically from November to January. We seem to get a nice weather break in February for a week or so and then it drizzles until April/Mayish.