3. Sleep Apnea
Sleep apnea is a common disorder that is often not diagnosed. This disorder is associated with restless sleeping, snoring, and essentially not breathing for periods of time during sleep. In addition, a person who suffers from sleep apnea may also have high blood pressure.
The reason for this is because when you stop breathing the oxygen levels in the body fall. When this happens the brain instructs the nervous system to increase oxygen flow to the heart and this will tighten up the blood vessels.
When this occurs often it can release stress hormones, which will raise your heart rate and increase the risk of developing high blood pressure.