6. Risks of high blood pressure
High blood pressure (hypertension) significantly raises the risk of serious health problems, especially when left uncontrolled. Key risks include:
- Heart disease: Elevated pressure forces the heart to work harder, potentially leading to heart failure, left ventricular hypertrophy, and ischemic heart disease.
- Stroke: High blood pressure damages and narrows arteries, increasing the likelihood of blood clots or hemorrhagic stroke.
- Kidney damage: Hypertension can harm the delicate filtering units in kidneys, leading to chronic kidney disease or failure.
- Vascular dementia: Reduced blood flow and vessel damage in the brain can impair cognition and cause dementia.
Managing blood pressure through lifestyle and medication reduces these risks substantially.
7. Lifestyle factors impacting blood pressure
Several modifiable lifestyle factors influence blood pressure levels. Addressing these can prevent or help control hypertension:
- Diet: Excessive salt intake raises blood pressure by increasing fluid retention. Diets rich in fruits, vegetables, whole grains, and low-fat dairy (such as the DASH diet) support healthy blood pressure.
- Physical activity: Regular moderate exercise improves vascular function and helps maintain a healthy weight, lowering blood pressure.
- Weight management: Being overweight increases cardiac workload and blood pressure; losing even a modest amount of weight can have beneficial effects.
- Alcohol consumption: Heavy or regular drinking raises blood pressure; limiting intake to moderate levels is advisable.
- Smoking: Tobacco use damages blood vessels and acutely raises blood pressure; quitting smoking lowers cardiovascular risk.
8. Medications affecting blood pressure
Numerous medications can influence blood pressure, either raising or lowering it. Common classes used to treat hypertension include:
- Diuretics: Help the kidneys remove excess salt and water, reducing blood volume.
- ACE inhibitors and ARBs: Relax blood vessels by blocking hormonal pathways that cause constriction.
- Calcium channel blockers: Relax arterial smooth muscle to reduce resistance.
- Beta blockers: Lower heart rate and output to reduce pressure.
Conversely, some drugs, such as nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids, decongestants, and certain antidepressants, can raise blood pressure. Patients should discuss medication effects with their healthcare provider and never stop prescribed drugs without medical guidance.
