A blood pressure of 104/76 is a good reading. It falls squarely within the normal category, which the American Heart Association and American College of Cardiology define as a systolic (top number) below 120 and a diastolic (bottom number) below 80. Both of your numbers clear those thresholds with comfortable room to spare.
What 104/76 Actually Tells You
The top number, 104, measures the pressure your blood exerts against artery walls each time your heart beats. The bottom number, 76, reflects that same pressure between beats, when your heart is briefly at rest. Together, they paint a picture of a cardiovascular system that isn’t working too hard to move blood through your body.
This reading sits in the sweet spot: well below the 120/80 ceiling for normal blood pressure, yet high enough that it’s unlikely to cause any symptoms of low blood pressure. European guidelines, which use slightly different cutoffs for hypertension, would also consider 104/76 healthy. In fact, the 2024 European Society of Cardiology guidelines set a default treatment target of 120 to 129 systolic for people being treated for high blood pressure, so your reading is already below where doctors aim to get their patients.
Could 104/76 Be Too Low?
Most health professionals consider blood pressure “too low” only when it causes symptoms. There’s no single number that defines hypotension for everyone. What matters is how you feel. A systolic reading in the low 100s is perfectly normal for many people, especially younger adults and those who are physically active.
The symptoms to watch for include dizziness or lightheadedness, blurred vision, fainting, unusual fatigue, trouble concentrating, or an upset stomach. If you experience none of these, a reading of 104/76 is simply a sign of good cardiovascular health. A sudden drop in blood pressure is more dangerous than a consistently low reading. Even a 20-point swing, like going from 110 to 90 systolic, can cause dizziness or fainting. A stable reading around 104 is a different situation entirely.
One Reading vs. a Pattern
A single blood pressure reading is a snapshot, not the full picture. Blood pressure fluctuates throughout the day based on stress, hydration, caffeine, physical activity, and even the time you last ate. If you’re checking at home, the American Heart Association recommends measuring at least twice daily when you first start monitoring, so you can establish a reliable baseline.
For the most accurate home readings, use an automatic cuff that wraps around your upper arm rather than your wrist. Sit quietly for a few minutes before measuring, keep your feet flat on the floor, and rest your arm at heart level. Once a year, bring your home monitor to a medical appointment so your care team can compare its readings against their equipment. If you have an irregular heartbeat, home monitors may not give reliable results, so it’s worth flagging that with your provider.
How Age Factors In
Current U.S. guidelines use the same blood pressure categories for all adults regardless of age. Older guidelines used to allow higher readings for people over 65, setting the threshold for concern at 150/80 instead of 140/90. That changed after large-scale research showed that lower targets benefited patients across all age groups. So whether you’re 25 or 75, 104/76 is a healthy number.
Blood pressure does tend to rise gradually with age as arteries stiffen, so maintaining a reading like 104/76 becomes harder over time. Regular physical activity, a diet rich in fruits, vegetables, and whole grains, moderate sodium intake, and maintaining a healthy weight all help keep your numbers in this range for as long as possible.