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.
Quick Answer. The lowest point in Oregon is sea level (0 feet) where the state meets the Pacific Ocean. Oregon's coast is 363 miles long. The highest point in Oregon is the peak of Mount Hood at 11,239 feet. Continue Reading.