40% of Portugal Patients Skip Heart Medications in Silent Health Crisis

Portugal-based medical associations have sounded the alarm on a troubling trend: a growing number of patients with chronic conditions are skipping prescribed medication, and most aren't even telling their doctors—not out of guilt, but because they don't see the problem.

Why This Matters

• 40% of chronic disease patients in Portugal fail to take medication as prescribed, despite being aware it's important.

• One in three patients who skip medication don't inform their physician, and among those who stay silent, 57% do so because they don't consider it relevant.

• Cardiovascular disease risk is silently accumulating among the under-50 crowd who feel "fine" and dismiss hypertension and high cholesterol.

• Patients without regular medical follow-up jumped from 14.1% to 20.5% in just one year—a red flag for the healthcare system.

The "I Feel Fine" Problem

The Portugal Society of Atherosclerosis (SPA), working alongside the Portuguese Society of Hypertension (SPH) and the Portuguese Society of Cardiology (SPC), surveyed 600 patients across the country aged 35 to 75+. Their conclusion: silence around medication non-adherence isn't driven by fear of judgment—it's rooted in a dangerous sense of normalcy.

"I always assumed people stayed quiet because they feared being scolded by their doctor, that old paternalistic model," explained Francisco Araújo, president of the SPA. "But that's not the whole story. These diseases typically produce no symptoms, and they're so common that people almost think of them as normal."

The study, released to mark World Adherence Day on March 27, revealed that 33.2% of patients who skip medication do so specifically because they have no symptoms. Another 17.2% don't perceive their condition as serious, and 15.8% blame complicated dosing schedules.

Even more concerning: nearly 7 in 10 patients who don't follow their treatment plan report zero worry that their disease might spiral out of control or worsen. This complacency exists despite 91.2% of hypertension patients and 73.1% of atherosclerosis patients being prescribed medication.

When "Prevalence" Masks Risk

Cardiovascular diseases—particularly hypertension and atherosclerosis—are the most widespread chronic conditions captured in the study. More than a quarter of respondents (25.5%) manage two chronic diseases simultaneously, and over 12% juggle three or more.

But prevalence has created a dangerous illusion. "Because these diseases unfold over many years, younger people underestimate their risk," Araújo cautioned. "We're not treating high blood pressure or cholesterol to reduce immediate danger. We're thinking ahead to when they're 60 or 70—the age when their parents often faced complications."

The study authors describe hypertension and atherosclerosis as "silent diseases" that allow risk to compound invisibly over decades. Yet nearly half of respondents—46.4%—lack the knowledge or skills to understand and apply the health information necessary to manage their condition day-to-day.

The Health Literacy Crisis

Beyond medication adherence, the research exposes a literacy gap that undermines patient autonomy. More than 1 in 5 respondents find health news and medical communication in Portugal media difficult or very difficult to understand.

Araújo used a three-legged stool analogy to illustrate the challenge: "The doctor, the medication, and the patient—when one leg fails, the whole thing collapses."

He emphasized that the greatest health gains from literacy efforts come from starting with children. "It's a marathon, not a sprint," he said. "We're trying to shape young people's behavior around chronic disease risk factors. You won't see results tomorrow."

What This Means for Residents

If you live in Portugal and are prescribed medication for hypertension, high cholesterol, or related cardiovascular conditions, this study is a wake-up call:

Tell your doctor the truth. If you're missing doses, they need to know. The data shows physicians are less likely to scold than to adjust your treatment plan.

Rethink "feeling fine." The absence of symptoms is not proof of health. Cardiovascular disease builds silently—by the time you feel unwell, irreversible damage may have occurred.

Demand clarity. If medical instructions or health news confuse you, ask for simpler explanations. Half the patient population struggles with this, so you're not alone.

Check your follow-up schedule. The jump in patients without regular medical supervision—from 14.1% to 20.5% year-over-year—is a structural problem. Make sure you're not slipping through the cracks.

Year-Over-Year Decline

Comparing this year's findings to the previous edition of the study reveals a worrying trajectory. The share of patients who skip medication because they "feel well" climbed from 21.9% to 32.9%—a nearly 50% increase in just 12 months.

Meanwhile, the proportion of patients without regular medical follow-up rose by more than 45%. These twin trends suggest a healthcare system under strain and a population increasingly disengaged from preventive care.

A Multi-Stakeholder Push

The research and the March 27 awareness campaign are backed by an unusually broad coalition of Portugal health organizations. In addition to the SPH, SPA, and SPC, supporters include the National Association of Pharmacies (ANF), the Portuguese Association of General and Family Medicine, Portugal AVC (stroke advocacy group), the Portuguese Society of Stroke, the Portuguese Society of Health Literacy, the Portuguese Society of Internal Medicine, and pharmaceutical firm Servier Portugal.

This cross-sector alliance reflects the scale of the adherence problem—and the recognition that no single institution can solve it alone.

The Invisible Epidemic

Chronic disease management in Portugal faces a paradox: medications are widely available, patients are generally aware they should take them, and yet 4 in 10 don't follow through. The culprit isn't cost or access—it's the seductive illusion that everything is fine.

Araújo's message is unambiguous: "When you're treating these conditions, you're not fixing today's problem. You're preventing the heart attack or stroke 20 years from now."

For policymakers, the study underscores the need for earlier health education, simpler communication, and more robust follow-up systems. For patients, it's a reminder that silent diseases don't announce themselves—they simply accumulate, quietly, until it's too late to reverse course.