A blood pressure of 110/63 falls within the normal range and is generally a healthy reading. The American Heart Association defines normal blood pressure as below 120/80 mm Hg, and both your numbers clear that threshold. That said, the diastolic number (63) sits in a zone worth understanding, especially if you have existing heart disease.
Where 110/63 Falls on the Chart
The AHA breaks adult blood pressure into five categories:
- Normal: below 120/80
- Elevated: 120 to 129 systolic, with diastolic still below 80
- Stage 1 hypertension: 130 to 139 systolic, or 80 to 89 diastolic
- Stage 2 hypertension: 140+ systolic, or 90+ diastolic
- Severe hypertension: above 180 systolic and/or above 120 diastolic
At 110/63, you’re comfortably in the normal category. You’re also well below the treatment threshold. The 2025 AHA/ACC guidelines, the first major update since 2017, reaffirm that the treatment goal for most adults is below 130/80, with encouragement to reach below 120/80. Your reading already meets that tighter target.
A Systolic of 110 Is a Good Sign
Your top number reflects the pressure in your arteries when your heart beats, and 110 is in a favorable range. A large study tracking cardiovascular risk in healthy adults found that people with systolic pressures between 90 and 129 had no statistically significant increase in heart disease risk compared to those at the lowest end of that range. However, cardiovascular event rates did climb gradually as systolic pressure rose: from about 1.5 events per 1,000 person-years in the 90 to 99 range, to roughly 3.1 in the 110 to 119 range, to 3.8 in the 120 to 129 range. The pattern is clear: lower is generally better, as long as you feel fine.
Data from the Multi-Ethnic Study of Atherosclerosis reinforces this. Among people with normal blood pressure and no other cardiovascular risk factors, every 10 mm Hg increase in systolic pressure (even within the normal range of 90 to 129) was linked to a 53% higher risk of cardiovascular events over 14 years. At 110, you’re on the lower, more protective end of that spectrum.
What a Diastolic of 63 Means
The bottom number measures pressure when your heart relaxes between beats, and this is the moment when blood flows into the coronary arteries that feed the heart muscle itself. Clinical hypotension is typically defined as a reading below 90/60, so 63 is above that cutoff. But it’s close enough to deserve a closer look depending on your health history.
A large study published in the Journal of the American College of Cardiology, tracking over 11,000 adults across three decades, found that people with diastolic pressure between 60 and 69 were twice as likely to show subtle signs of heart damage compared to those with diastolic readings of 80 to 89. The concern is specific: when coronary arteries are partially clogged with fatty deposits, lower diastolic pressure means less blood pushing through those narrowed passages. Parts of the heart muscle may not get enough oxygen and nutrients.
For a young, healthy person with clean arteries, a diastolic of 63 is unlikely to cause any problems. If you have known coronary artery disease or are on blood pressure medication that’s pushing your diastolic down, it’s worth keeping an eye on. Harvard Health notes that people with heart disease may want to ensure their diastolic pressure doesn’t regularly fall below 70.
When Low Blood Pressure Becomes a Problem
Numbers alone don’t tell the full story. Blood pressure is considered too low only when it drops below 90/60 or causes symptoms. The symptoms to watch for include dizziness or lightheadedness, fainting, nausea, blurred vision, and fast shallow breathing. Falls from dizziness-related fainting are the most serious complication of genuinely low blood pressure, particularly for older adults.
If you regularly read around 110/63 and feel perfectly fine, with no dizziness when you stand up and no unusual fatigue, your blood pressure is working well for you. Some people naturally run on the lower side, and that’s typically protective rather than harmful.
Getting an Accurate Reading
A single reading is a snapshot, not a diagnosis. Many things can temporarily shift your numbers in either direction. Caffeine, alcohol, or exercise within 30 minutes of a reading can push your pressure higher. A full bladder does the same. Even crossing your legs or letting your arm hang at your side instead of resting it on a table at chest height can skew results.
For the most reliable picture, the CDC recommends sitting in a comfortable chair with back support for at least five minutes before measuring. Keep both feet flat on the floor, legs uncrossed, and rest your cuffed arm on a table at chest level. Don’t eat or drink anything for 30 minutes beforehand. Taking readings at the same time of day over several days gives you a much more useful average than any single measurement.
It’s also worth knowing that about 1 in 3 people who get a high reading at the doctor’s office have normal blood pressure at home, a phenomenon called white coat syndrome. Home monitoring can help you understand your true baseline.
Age and Blood Pressure Trends
The AHA does not set different blood pressure targets for different age groups. Normal is below 120/80 whether you’re 25 or 75. But systolic pressure tends to rise naturally with age as large arteries stiffen and plaque accumulates. For people over 50, the systolic number becomes a more important predictor of heart disease risk than the diastolic number.
If you’re younger and reading 110/63, you’re in an excellent position. If you’re older and seeing this number without medication, that’s also a strong sign of cardiovascular health. If medication is driving your systolic to 110 but pulling your diastolic into the low 60s, that tradeoff is worth discussing with your provider, particularly if you have coronary artery disease.