This week, more of you read our look at the new blood pressure guideline than any other story we published. That makes sense. Blood pressure is the one health number nearly all of us carry around, and the 2025 guideline from the American Heart Association and the American College of Cardiology changed a good deal about what happens after that number gets taken.
The first article covered the basics: the categories, the goal, and how to take a proper reading at home. This one goes further. How your doctor now decides when to start medicine. What the memory research actually showed. What belongs on your plate, what may be hiding in your medicine cabinet, and how to get more out of the cuff you already own.
A Quick Refresher on the Numbers
Normal blood pressure is below 120 over 80. Stage 1 high blood pressure starts at 130 on top or 80 on the bottom. Stage 2 starts at 140 over 90. For most adults, the goal is to stay below 130 over 80.
Those lines have been in place since 2017. What the 2025 guideline changed is the path from a high reading to a treatment plan, and that path now runs through a new tool.
The Calculator Behind Your Doctor’s Decision
The guideline asks doctors to use an American Heart Association tool called PREVENT. It estimates your chance of having a heart attack, a stroke, or heart failure over the next 10 years. It uses details your doctor likely already has on file: your age, blood pressure, cholesterol, weight, kidney function, blood sugar, and whether you smoke.
Here is why that estimate matters. Say your blood pressure sits in the 130s over 80s and your 10-year risk comes out at 7.5 percent or higher. In that case, the guideline recommends starting medicine along with lifestyle changes right away. The same goes for people who have diabetes, kidney disease, or heart disease. If your risk comes out lower, you get three to six months to bring the number down with lifestyle changes first.
One detail worth knowing. The American Heart Association says PREVENT is designed for adults ages 30 to 79 who do not already have heart disease. If you fall outside that range, ask your doctor how your treatment decision is being made. Either way, the AHA encourages you to ask about your risk estimate at your next checkup. It is a fair question, and the answer shapes everything that comes next.
What the Memory Research Actually Found
The guideline now recommends treating high blood pressure early, with a top number below 130, partly to protect memory and thinking. Much of that evidence traces back to a large trial called SPRINT, funded by the National Institutes of Health.
SPRINT enrolled adults 50 and older who had high blood pressure and an elevated risk of heart disease. One group aimed for a top number below 120. The other aimed for below 140. A part of the study called SPRINT MIND followed how participants’ memory and thinking held up over time.
The results, published in the Journal of the American Medical Association in 2019, were encouraging and candid about their limits. On dementia itself, the difference between the groups fell short of statistical proof. That may be because the trial ended early and fewer cases turned up than expected. On mild cognitive impairment, the lower-target group did significantly better. That is the stage of memory and thinking trouble that often comes before dementia. The NIH added an important reassurance: aiming lower, which already protects the heart, proved safe for the brain.
The American Heart Association sums it up plainly. The evidence linking high blood pressure to memory decline is stronger now, and lowering it today may help protect your brain in the years ahead.
Your Plate Comes First
For most people, lifestyle changes are the first step, and for many they are the entire first season of treatment. The advice will sound familiar, but some of the details are new.
Start with salt. The American Heart Association says adults should keep sodium to 2,300 milligrams a day or less, about one teaspoon of salt, and work toward an ideal of under 1,500. The National Institute on Aging adds a point that matters for us: blood pressure tends to grow more sensitive to salt as the years go by.
The salt shaker is a smaller culprit than most people think. The FDA says most of the sodium Americans eat comes from packaged and restaurant foods. The quickest fix is on the Nutrition Facts label. The FDA’s rule of thumb is simple: 5 percent Daily Value of sodium or less per serving is low, and 20 percent or more is high.
There is also a new option at the spice rack. For the first time, the guideline says potassium-based salt substitutes can be useful, especially for people whose salt comes mostly from cooking and seasoning at home. There is an important exception. These products can be risky for people with kidney disease or those taking medicines that raise potassium levels, so ask your doctor or pharmacist before you switch.
For the overall pattern, the guideline points to the DASH eating plan, developed through research funded by the National Heart, Lung, and Blood Institute. It leans on vegetables, fruits, whole grains, beans, nuts, fish, poultry, and low-fat dairy, with less salt, red meat, and sweets. In the original NHLBI research, blood pressure started coming down within two weeks.
Alcohol got a firmer line. The previous guideline allowed up to one drink a day for women and two for men. The American Heart Association now says to drink less or no alcohol to lower or prevent high blood pressure. The guideline’s chair, Dr. Daniel Jones, has said the aim is to help people make an informed decision.
Weight matters too. For people carrying extra pounds, the AHA says losing about 5 percent of body weight can help. At 180 pounds, that is 9 pounds.
Then there is movement. The CDC recommends 150 minutes of moderate activity a week, such as 30 minutes of brisk walking five days a week. It also recommends muscle-strengthening activity on at least two days and activities that improve balance.
Finally, calm and sleep. The AHA suggests stress-reducing practices such as meditation, breathing exercises, or yoga. It also recommends asking your doctor about conditions like sleep apnea that can push blood pressure up.
If Medicine Joins the Plan
For anyone averaging 140 over 90 or higher, the guideline recommends starting with two medicines at once, ideally combined in a single pill. Fewer pills make for a simpler daily routine.
Two other changes are worth knowing about. The guideline now recommends a simple urine test, called the urine albumin-to-creatinine ratio, for everyone with high blood pressure. It looks for early signs of kidney damage.
The second change applies if your pressure stays high even on three medicines. In that case, the guideline says you should be screened for primary aldosteronism. In this condition, the adrenal glands make too much of a hormone that raises blood pressure. Finding it can point your doctor toward more targeted treatment.
Whatever your plan, one rule from the American Heart Association holds firm: do not stop taking blood pressure medicine without checking with your doctor, no matter what your home readings say. And keep up the lifestyle changes. The National Institute on Aging notes they may help lower the dose of medicine you need.
Check the Medicine Cabinet, and the Candy Dish
Some everyday products can push blood pressure up or make blood pressure medicine work less well. Mayo Clinic flags several worth knowing, and cold season is a good time to look.
Pain relievers called NSAIDs, including ibuprofen and naproxen, can cause the body to hold onto water, which can raise blood pressure. Ask your doctor or pharmacist which pain reliever is safest for you.
Decongestants, found in many cold and allergy medicines, narrow blood vessels. Mayo Clinic says that if you have high blood pressure, it is best to stay away from them. Look for pseudoephedrine or phenylephrine on the label. Choose a cold medicine made for people with high blood pressure, or try a saline nasal spray for a stuffy nose.
Herbal supplements can play a part too. Mayo Clinic lists licorice, ginseng, guarana, and St. John’s wort among those that can affect blood pressure or blood pressure medicine. Tell your health care team about every supplement you take.
The candy dish counts as well. The FDA warns that black licorice contains glycyrrhizin, a compound that can lower potassium levels. For people 40 and older, the agency says eating two ounces a day for at least two weeks could lead to an irregular heart rhythm. It also lists high blood pressure among the possible effects. Many licorice-flavored candies made in the U.S. use anise oil instead, so check the ingredients.
Coffee is a judgment call. Caffeine can cause a short spike in people who do not drink it regularly. Mayo Clinic suggests a simple test with your cuff: check your blood pressure about 30 minutes after a cup. If it rises, you may be sensitive to caffeine. Keep that test separate from your regular log, which calls for no caffeine in the 30 minutes before a reading.
Getting More From the Cuff You Own
A cuff only helps if it is accurate. The American Heart Association recommends measuring around your upper arm and choosing a monitor with the right cuff size. A cuff that does not fit will give a wrong reading.
Next, take the monitor to your next appointment. The AHA suggests having your care team watch you use it and compare its results with the office equipment. After that, bring it back about once a year to make sure it is still accurate.
Try not to worry over one high number. The AHA says a single high reading is no immediate cause for alarm. Take it again and write down both results. Then check with your doctor about whether the reading reflects your health or a problem with the monitor. The exception is the emergency range we covered this week: above 180 over 120.
Sometimes home and office numbers disagree enough that your doctor wants a fuller picture. In those cases, a doctor may order a monitor you wear for 24 hours, including while you sleep. Medicare covers this test when your doctor suspects white coat hypertension, where pressure runs high at the office but normal elsewhere. It also covers it for masked hypertension, which is the reverse.
As for the cuff itself, Mayo Clinic suggests asking your insurance plan whether it covers a home monitor.
Questions Worth Bringing to Your Next Visit
- What is my 10-year PREVENT risk, and does the calculator apply to me?
- What blood pressure target is right for me? The NIA notes that your doctor will work with you to find the target best for your well-being.
- Have I had the urine test that checks my kidneys?
- Could any of my medicines or supplements be raising my pressure?
- Would a combination pill simplify my routine?
- If I am on three medicines and still above goal, should I be screened for primary aldosteronism?
- Should I be checked for sleep apnea?
- Will you check my home monitor against yours?
The Bottom Line
The 2025 guideline gives your doctor better tools: a sharper risk calculator, earlier treatment, and new tests. Your tools are simpler. A cuff you trust. A pantry with fewer salty labels. A short list of questions.
One week of readings, one look through the medicine cabinet, one conversation with your doctor. That is this week’s assignment. And remember, never act on your own without consulting with your doctor.