High blood pressure is one of the world’s biggest health threats, yet many people who have it do not know it or do not have it under control.
A study suggests that a straightforward global plan to improve testing and treatment could prevent tens of millions of early deaths.
The research was carried out by scientists from the University of Washington and other institutions. The study examined how improving the detection, treatment and control of high blood pressure could reduce deaths around the world.
High blood pressure, also called hypertension, happens when blood pushes against artery walls with too much force over a long period. This extra pressure can slowly damage blood vessels and important organs, including the heart, brain and kidneys.
The condition is a major cause of heart attacks and strokes, which are among the leading causes of death worldwide. It can also contribute to heart failure, kidney disease and other serious health problems.
One reason hypertension is particularly dangerous is that people often feel completely normal. There may be no clear warning signs, so someone can live with dangerously high blood pressure for years without realizing it.
Checking blood pressure is simple, quick and inexpensive, and several types of medicine can lower it effectively. Healthy changes such as reducing salt, exercising regularly, maintaining a healthy weight and avoiding smoking can also help.
Despite these options, blood pressure control remains poor in many parts of the world. The researchers reported that only about one in five people with hypertension successfully controls the condition with medication.
The reasons vary widely between countries and communities. Some people have limited access to clinics, doctors or affordable medicines, while others have never been tested and therefore do not know that treatment is needed.
Even after a diagnosis, treatment can be difficult to maintain for years. Medicines may be unavailable or expensive, follow-up care may be limited, and some people may stop taking their tablets because they feel well or experience side effects.
To improve the situation, the researchers examined an ambitious target called the 80-80-80 goal. Under this approach, 80% of adults would be screened for high blood pressure, 80% of people diagnosed with hypertension would receive treatment, and 80% of those treated would successfully control their blood pressure.
The idea is simple, but its possible impact is enormous. Using mathematical models, the researchers estimated what could happen if countries around the world reached these targets.
Their calculations suggested that achieving the 80-80-80 goal could prevent between 76 million and 130 million deaths. The benefits could extend beyond lives saved because better blood pressure control could also prevent many heart attacks, strokes and cases of long-term disability.
A serious stroke, for example, can leave a person unable to walk, speak clearly or live independently. Preventing such events can improve quality of life while reducing the enormous financial and care burden placed on families and health systems.
Reaching the target would require more than simply telling people to visit a doctor. Countries would need reliable screening programs, affordable medicines, regular follow-up and health systems that make long-term treatment easier to continue.
The researchers believe that major improvements are possible because the basic tools already exist. Blood pressure can be measured with relatively inexpensive equipment, and many effective medicines are available as low-cost generic drugs.
The study highlights a powerful public health opportunity: hypertension does not require a new scientific breakthrough before progress can be made. Finding more people with high blood pressure, providing treatment and helping them keep it controlled could become one of the most effective ways to prevent early deaths worldwide.
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