What Causes High Blood Pressure in Young Adults?

High blood pressure in young adults is most often caused by a combination of unhealthy lifestyle habits—such as eating too much sodium, being overweight or obese, not getting enough physical activity, drinking too much alcohol, and smoking—along with genetic predisposition and, less commonly, underlying medical conditions or certain medications. About 1 in 5 adults ages 18 to 39 has elevated blood pressure or hypertension, yet many are unaware because it usually has no symptoms.

Hypertension, or consistently high blood pressure, occurs when the force of blood pushing against artery walls is too high. It is often called a "silent killer" because it can damage the heart, brain, kidneys, and eyes for years without causing noticeable symptoms. The good news is that high blood pressure in young adults can often be prevented, managed, and sometimes reversed through lifestyle changes and early detection.

Key Causes and Risk Factors for Young Adults

Several factors contribute to high blood pressure in people under 40. Some can be changed, while others are beyond your control.

Lifestyle Factors You Can Change

  • Unhealthy diet: Eating too much sodium (salt) and too little potassium raises blood pressure. Processed foods, fast foods, and restaurant meals are often high in sodium. The DASH eating plan, which emphasizes fruits, vegetables, whole grains, and low-fat dairy while limiting sodium, saturated fat, and added sugar, is recommended for lowering blood pressure.
  • Excess weight or obesity: Carrying extra body fat, especially around the waist, increases stress hormones and forces the heart to work harder. Losing even a small amount of weight can help lower blood pressure.
  • Physical inactivity: A sedentary lifestyle weakens the cardiovascular system and contributes to weight gain. Regular exercise strengthens the heart and helps control blood pressure.
  • Chronic stress: Long-term stress raises heart rate and stress hormones like cortisol and adrenaline, which can elevate blood pressure over time.
  • Smoking and tobacco use: Nicotine raises blood pressure immediately and damages artery walls, leading to narrowing and stiffening of blood vessels.
  • Excessive alcohol consumption: Drinking too much alcohol can raise blood pressure. Guidelines suggest limiting alcohol to no more than two drinks per day for men and one drink per day for women.
  • Substance use: Cocaine, methamphetamine, "bath salts," and other stimulants can cause dangerous spikes in blood pressure and long-term damage.

Factors You Cannot Change

  • Genetics and family history: If your parents or close relatives have high blood pressure, you are more likely to develop it. Some people also have a genetic sensitivity to salt.
  • Age: Blood pressure tends to rise with age as blood vessels naturally thicken and stiffen. However, high blood pressure is increasingly seen in younger people due to lifestyle factors.
  • Race and ethnicity: High blood pressure is more common in Black adults, who tend to develop it at an earlier age and experience more severe complications.
  • Sex: Before middle age, men are more likely than women to have high blood pressure. After menopause, women's risk increases.

Underlying Medical Conditions and Medications

In some young adults, high blood pressure is secondary to another health problem or medication. These include: For the next step, read our overview of Does High Blood Pressure Make You Sleepy.

  • Kidney disease
  • Hormonal disorders (e.g., thyroid problems, Cushing's syndrome)
  • Sleep apnea
  • Certain medications, such as decongestants, birth control pills, steroids, antidepressants, and non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen

If you are young and have high blood pressure, your doctor may evaluate you for these secondary causes, especially if your blood pressure is very high or resistant to treatment.

How Common Is High Blood Pressure in Young Adults?

High blood pressure is not just a problem for older adults. According to a 2011 study from the University of North Carolina at Chapel Hill, about 19% of young adults aged 24 to 32 had high blood pressure. More recent estimates suggest that approximately 1 in 5 adults between 18 and 39 has elevated blood pressure or hypertension. Many are unaware because they do not get regular check-ups.

Signs and Symptoms to Watch For

Most people with high blood pressure have no symptoms, which is why regular screening is essential. However, some individuals may experience:

  • Headaches
  • Dizziness
  • Blurred vision
  • Shortness of breath

These symptoms usually occur when blood pressure is dangerously high. If you experience severe headache, chest pain, or difficulty breathing, seek emergency medical care.

How to Lower Your Blood Pressure

If you have high blood pressure, lifestyle changes are the first line of defense. In some cases, medication may also be needed. Here are proven strategies:

  • Follow the DASH diet: Emphasize fruits, vegetables, whole grains, lean proteins, and low-fat dairy. Limit sodium to less than 2,300 mg per day (or 1,500 mg if you have high blood pressure).
  • Exercise regularly: Aim for at least 150 minutes of moderate-intensity aerobic activity per week, such as brisk walking, plus muscle-strengthening activities on two days per week.
  • Maintain a healthy weight: Losing even 5-10% of your body weight can significantly lower blood pressure.
  • Limit alcohol: Stick to no more than one drink per day for women and two for men.
  • Quit smoking: Smoking cessation improves overall cardiovascular health.
  • Manage stress: Practice relaxation techniques like meditation, deep breathing, or yoga.
  • Get enough sleep: Aim for 7-9 hours per night. Poor sleep, especially sleep apnea, can raise blood pressure.
  • Monitor your blood pressure at home: Regular monitoring helps you track progress and alert you to problems.

If lifestyle changes are not enough, your doctor may prescribe medication. Many young adults can eventually reduce or stop medication if they adopt and maintain healthy habits.

When to See a Doctor

Have your blood pressure checked at least once every two years if it is normal (less than 120/80 mm Hg), and more often if it is elevated or you have risk factors. If you are young and have high blood pressure, see a healthcare provider to rule out secondary causes and develop a treatment plan. Early detection and management can prevent long-term damage to your heart, brain, kidneys, and eyes.

Remember, high blood pressure is a chronic condition, but it is manageable. With the right approach, you can live a long and healthy life.

Sources

  • Why more young adults are developing hypertension
  • Risk Factors Associated With Hypertension in Young Adults
  • Are you the 1 in 5? High blood pressure in young adults a ...