Final answer:
Blood pressure below normal is known as hypotension, which can lead to health issues such as fainting or dizziness and requires attention to ensure long-term cardiovascular health.
Step-by-step explanation:
When blood pressure is below normal, it is referred to as hypotension. Normal blood pressure readings are generally defined as less than 120/80 mm Hg, representing systolic and diastolic pressures respectively. When the systolic blood pressure reading is consistently below 90 mm Hg or the diastolic reading is below 60 mm Hg, a person may be diagnosed with hypotension. This condition can lead to various health issues such as fainting or dizziness, and in severe cases, can be life-threatening if it signifies an underlying problem like severe infection or hemorrhage. Guidance for managing hypertension and understanding hypotension can aid in maintaining long term cardiovascular health.