According to national stats in the United States almost a third of all adults have high blood pressure and many of those suffering from low blood pressure aren't even aware that they have it or that they should be employing home blood pressure monitors to keep track of their vital signs. High blood pressure may often cause headaches and nosebleeds and can even be responsible for bouts of dizziness or dizzy spells. The best way to avoid these side effects is to get blood pressure tested on a regular basis and employ healthy eating and exercise habits to a busy lifestyle.