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Heart failure is a serious condition where the heart cannot pump blood effectively to meet the body's needs. It is caused by damage to the heart muscle from conditions like coronary artery disease, high blood pressure, or previous heart attacks that weaken the heart's pumping ability. The B-Type Natriuretic Peptide (BNP) test is the most important test for diagnosing heart failure because elevated BNP levels directly indicate heart muscle stress and disease severity.
Heart failure is caused by damage to the heart muscle that weakens its ability to pump blood effectively throughout the body. The most common causes include coronary artery disease, which restricts blood flow to the heart muscle, high blood pressure that forces the heart to work harder over time, and previous heart attacks that damage heart tissue. Other contributing factors include heart valve disease, cardiomyopathy, congenital heart defects, and certain chronic conditions like diabetes and obesity that put extra strain on the cardiovascular system.
The B-Type Natriuretic Peptide (BNP) test is the most important blood test for diagnosing heart failure because it measures a hormone that the heart releases specifically in response to increased pressure and stress on the heart muscle. Elevated BNP levels directly correlate with the presence and severity of heart failure, with higher levels indicating more advanced disease. Additional supporting tests include the Urea Nitrogen (BUN) test to monitor kidney function affected by reduced blood flow, the Lactic Acid test to assess tissue oxygenation, and the AST test to evaluate heart muscle damage. These tests work together to provide a comprehensive picture of heart health and help guide treatment decisions.
You should get tested if you experience persistent shortness of breath, especially when lying down or during physical activity, unexplained fatigue that limits your daily activities, or sudden weight gain with swelling in your legs, ankles, or abdomen. Other warning signs include a rapid or irregular heartbeat, persistent coughing or wheezing with white or pink-tinged mucus, and difficulty concentrating or decreased alertness. Testing is especially important if you have risk factors like high blood pressure, coronary artery disease, diabetes, or a family history of heart disease.
What this means
Your testosterone levels are slightly below the optimal range. While this is not necessarily cause for concern, it may contribute to occasional fatigue, reduced motivation, or lower muscle mass over time.
Recommended actions
Increase resistance or strength training
Prioritize 7–8 hours of quality sleep per night, try to reduce stress
Include more zinc- and magnesium-rich foods (like shellfish, beef, pumpkin seeds, spinach)
Consider retesting in 3–6 months
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