Is Resting Heart Rate Calculated When Sleeping

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Wondering if your heart rate is within a healthy range? Use this calculator to determine your Resting Heart Rate (RHR) based on a manual pulse count and learn how it relates to your health.

15 Seconds 20 Seconds 30 Seconds 60 Seconds (Full Minute)

function calculateRHR() { var pulse = document.getElementById('pulseCount').value; var seconds = document.getElementById('timeSpan').value; var resultArea = document.getElementById('rhr-result-area'); var rhrDisplay = document.getElementById('rhr-value'); var categoryDisplay = document.getElementById('rhr-category'); if (pulse > 0 && seconds > 0) { var bpm = Math.round((pulse / seconds) * 60); rhrDisplay.innerHTML = bpm; resultArea.style.display = 'block'; var category = ""; var cssClass = ""; if (bpm = 40 && bpm = 60 && bpm 100) { category = "High (Tachycardia)"; cssClass = "danger"; } categoryDisplay.innerHTML = category; categoryDisplay.className = "category-tag " + cssClass; resultArea.scrollIntoView({ behavior: 'smooth', block: 'nearest' }); } else { alert("Please enter a valid number of beats."); } }

Is Resting Heart Rate Calculated When Sleeping?

Technically, no. While your heart rate is at its absolute lowest during sleep, Resting Heart Rate (RHR) is defined as the heart rate of a person who is awake but in a state of complete rest. To get an accurate RHR, you should measure it in the morning, right after you wake up, but before you get out of bed or consume caffeine.

When you are sleeping, your body undergoes various stages (like REM and deep sleep) where the heart rate can fluctuate. While many modern wearables track "Sleeping Heart Rate," medical professionals typically look for your "awake but resting" numbers to establish a baseline for cardiovascular fitness.

How to Measure Your RHR Correctly

• Timing: First thing in the morning, before sitting up.
• Position: Lying flat on your back or sitting very still.
• Method: Use two fingers (not your thumb) to find the pulse on your wrist (radial) or neck (carotid).
• Count: Count the beats for 30 seconds and multiply by 2, or use the calculator above.

Example Calculation:
If you wake up and count 17 beats over a 15-second period:
17 beats / 15 seconds = 1.133 beats per second
1.133 * 60 seconds = 68 BPM
Result: 68 BPM is considered a healthy "Normal" resting heart rate.

RHR vs. Sleeping Heart Rate: What's the Difference?

The main difference is the state of consciousness and metabolic demand. During sleep, your metabolic rate drops to its lowest point, and your parasympathetic nervous system takes full control, often pushing the heart rate 10-20% lower than your RHR. For most healthy adults, a sleeping heart rate can dip into the 40s or 50s, which is perfectly normal.

What Factors Affect Your Resting Heart Rate?

Several factors can cause your RHR to fluctuate daily:

• Fitness Level: Generally, the more fit you are, the lower your RHR.
• Stress and Anxiety: High stress can keep the heart rate elevated even at rest.
• Hydration: Dehydration reduces blood volume, forcing the heart to beat faster to maintain blood pressure.
• Temperature: Your heart works harder to cool the body in hot or humid weather.
• Medications: Beta-blockers slow the heart, while some asthma medications can increase it.

When to See a Doctor

While a low heart rate is often a sign of fitness (bradycardia in athletes), it can be concerning if accompanied by dizziness, fainting, or shortness of breath. Conversely, a resting heart rate consistently above 100 BPM (tachycardia) should be evaluated by a healthcare professional to rule out underlying conditions like thyroid issues or anemia.