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Dementia risk associated with time blood pressure stays within target range

Dementia risk associated with time blood pressure stays within target range

 


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A new study shows that the length of time blood pressure stays within a healthy “target range” is important for brain health. mixetto/Getty Images
  • Nearly half of Americans have high blood pressure, also known as hypertension.
  • Maintaining healthy blood pressure can help avoid conditions such as dementia.
  • A new study builds on existing evidence and shows that the length of time blood pressure stays within a healthy “target range” is a key factor. for brain health.
  • Regular exercise and a balanced diet can contribute to healthy blood pressure levels.

Maintaining healthy blood pressure has long been associated with a lower risk of developing conditions such as dementia.

Now, a new study recently published in the journal circulation It suggests that the length of time blood pressure remains within the “target range” may also be an important factor in avoiding brain disease.

The survey results are American Heart Association Scientific Sessions The conference will be held November 5-7 in Chicago and will be considered provisional until full publication in a peer-reviewed journal.

This study is believed to be the first to examine the relationship between the length of time blood pressure levels stay within a healthy target range and dementia risk.

Scientists at Beijing Anzhen Hospital in China examined data on 8,415 individuals collected as part of the National Institutes of Health (NIH)-led Systolic Blood Pressure Intervention Trial (SPRINT).

Participants had an average age of 68 years and all had been diagnosed with an infectious disease. high blood pressure — but no one showed signs of cognitive impairment or decline at the start of the trial.

To determine the target range or “ideal” blood pressure level, blood pressure was measured monthly during the first three months of the study.

Participants’ cognitive status was measured two years after the study began and again two years later.

Participants whose systolic blood pressure levels remained within the target range for longer periods were less likely to be diagnosed with probable dementia.

In fact, every 31.5% increase in time spent within the target range was associated with a 16% lower risk of dementia.

Researchers said consistency was more important than having blood pressure fluctuating with an average that fell within the target range.

“High and low blood pressure fluctuations can put additional stress on our bodies. Rajesh GuptaAn interventional cardiologist and associate professor at the University of Toledo School of Medicine and Life Sciences, explained to Healthline.

“Each organ system, including our heart, brain, and kidneys, learns to live within a specific blood pressure range, and fluctuations can cause organ stress and damage.

Despite the impact of new research, this study was retrospective looking at previously collected data, meaning there are noticeable gaps in the findings.

“These trials [such as SPRINT] I wouldn’t say the ‘amount’ of time in the target range makes a difference,” Dr. Stanley S. Liu, A cardiologist at the University of Maryland Medical Center and an assistant professor of medicine at the University of Maryland School of Medicine told Healthline.

So the new study couldn’t say for sure how long blood pressure should stay in a certain range, only that the longer the duration, the better.

There are two blood pressure measurements: systole and diastoleIn this study, researchers focused on systolic blood pressure.

systole Blood pressure is the pressure that blood exerts on arterial walls during heartbeat. Diastolic blood pressure indicates the pressure in the artery walls between heart beats.

For blood pressure measurements (that is, 130/82 mmHg), the first number represents systole and the second number represents diastole. health Blood pressure is considered below 120/80 mmHg.

High blood pressure (also called high blood pressure) is experienced by most people. half adult in the United States.

“Hypertension can be caused by an increase in systolic blood pressure, diastolic blood pressure, or both,” says Dr. Patrick Ascalatea cardiologist at the Miami Cardiovascular Institute told Healthline.

Moreover, there are few noticeable signs of hypertension. Many people are unaware that they have high blood pressure.

“Some people get headaches and feel sick when they have high blood pressure, but most people don’t feel anything,” says Tyler.

Age is an important factor in developing hypertension levels.

As a person ages, Liu explained: “The blood vessels become stiffer. [or] You become less flexible and have difficulty regulating your blood pressure. ”

Other factors that can cause high blood pressure include:

High blood pressure can affect both your heart and brain.

“Though they may seem unrelated, vascular health and blood pressure are very closely related to brain health and dementia prevention,” said Liu.

“Cerebral blood vessels are susceptible to damage from hypertension. Dementia caused by cumulative damage to blood vessels is common, and ultimately brain damage due to lack of oxygen to brain cells (this is called vascular cognition). disease)”.

Damage to blood vessels and arteries due to high blood pressure is a major cause of stroke. Survey from 2019 It shows that 1 in 5 people who have a stroke will develop dementia.

“We know that the kidneys suffer structural damage after years of exposure to high blood pressure. The same is true for the heart and brain,” Gupta added.

High blood pressure is a risk factor for dementia and can be controlled in some people. Here are some ways to manage your blood pressure on a regular basis.

  • exercise. “This is the best way to lower blood pressure,” Azcarate said. “Currently, he recommends at least 30 minutes of moderate-intensity exercise, four to five times a week.”
  • Control your sodium intake. Your diet should contain less than 2,300 mg of sodium per day. This can be difficult with a typical Western diet.
  • eat healthy. backed by research dash diet An emphasis on fruits, vegetables, and nuts (diet to stop high blood pressure) can help control high blood pressure levels.
  • get enough sleep. Adults should aim for 7 hours of sleep per night. “Sleep quality and quantity are very important for maintaining healthy blood pressure,” he says.
  • check with your doctor. Work with your doctor to accurately measure and manage your blood pressure. Blood pressure medication may be an option if needed.

Regulating blood pressure is associated with avoiding conditions such as heart attack, stroke, and dementia.

Research now shows that the length of time blood pressure stays within a healthy target range is also important for reducing the risk of concern, especially cognitive decline.

In addition to being monitored by your doctor, having your blood pressure checked regularly can help you keep an eye out for potential problems.

“You can check your blood pressure at pharmacies and drugstores that have free sphygmomanometers,” Tyler said. “You can also buy a blood pressure monitor for home use.”

Sources

1/ https://Google.com/

2/ https://www.healthline.com/health-news/dementia-risk-linked-to-how-long-blood-pressure-stays-in-target-range

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