Elevated Resting Heart Rate and Its Causes

Resting heart rate inquiry?

Recently, I have been experiencing intermittent chest tightness and palpitations.
During examinations, my heart rate, blood tests, and X-rays showed no abnormalities, but they indirectly revealed issues related to sleep apnea.
My sleep quality at night is also not very good.
I tried to go for brisk walks in the park on weekends, but I noticed that after sitting and resting at home for an hour, my heart rate measured with a pulse oximeter remained between 100 and 110 bpm.
I attempted deep breathing exercises, which could lower my heart rate to the 90s, but it quickly rose back to 100-110 bpm.
What could be causing this condition? Thank you.

Ben, 40~49 year old female. Ask Date: 2022/02/13

Dr. Li Han reply Cardiology

Hello, your issue is quite complex, and several experts have arranged professional examinations for you.
However, the occurrence of diseases can sometimes be influenced by a combination of physical, psychological, and adaptive factors, making it difficult to obtain satisfactory answers through online inquiries.
I suggest you take it easy and discuss the information you have with a specialist.
Some treatments may not have definitive conclusions, some may be costly, and some may not yield results.
All of this needs to be addressed through discussion.
Achieving a one-step solution may be challenging for you.
Since you have the ability to move forward quickly, it might be beneficial to maintain persistence.
A healthy lifestyle will undoubtedly help you, both physically and mentally.
Take care, and the Changhua Hospital of the Ministry of Health and Welfare is concerned about you.

Reply Date: 2022/02/13

More Info

Elevated resting heart rate (RHR) can be a concerning symptom, especially when accompanied by feelings of chest tightness and palpitations. Understanding the potential causes and implications of an elevated heart rate is crucial for managing your health effectively.

Firstly, it’s important to recognize that a normal resting heart rate typically ranges from 60 to 100 beats per minute (bpm). Factors such as physical fitness, stress levels, hydration, and underlying medical conditions can significantly influence heart rate. In your case, a resting heart rate consistently between 100-110 bpm, especially after physical activity or during periods of rest, warrants further investigation.

Possible Causes of Elevated Resting Heart Rate:
1. Physical Deconditioning: If you are not regularly active, your heart may have to work harder to maintain adequate blood flow, leading to a higher resting heart rate. Regular cardiovascular exercise can help improve heart efficiency and lower resting heart rate over time.

2. Stress and Anxiety: Psychological factors such as stress, anxiety, and panic can lead to increased sympathetic nervous system activity, which can elevate heart rate. If you have been experiencing anxiety, it may be beneficial to explore relaxation techniques such as deep breathing, meditation, or yoga.

3. Sleep Quality: Poor sleep quality, including conditions like sleep apnea, can contribute to elevated heart rates. Sleep apnea can cause intermittent breathing cessation during sleep, leading to increased heart rate and blood pressure as your body struggles to maintain oxygen levels. If you suspect sleep apnea, a sleep study may be warranted.

4. Dehydration: Inadequate fluid intake can lead to dehydration, which can increase heart rate as the body attempts to maintain blood pressure and circulation.

5. Caffeine and Stimulants: Consumption of caffeine or other stimulants can temporarily raise heart rate. If you consume coffee, energy drinks, or certain medications, consider reducing your intake to see if it affects your heart rate.

6. Medical Conditions: Conditions such as hyperthyroidism, anemia, or infections can also lead to an elevated heart rate. If your symptoms persist, further evaluation by a healthcare provider may be necessary to rule out these conditions.

Recommendations:
- Monitor Your Heart Rate: Keep track of your heart rate at different times of the day and during various activities. This information can be helpful for your healthcare provider in understanding your condition.

- Lifestyle Modifications: Incorporate regular aerobic exercise into your routine, stay hydrated, and maintain a balanced diet. Reducing caffeine and managing stress through relaxation techniques can also be beneficial.

- Sleep Hygiene: Prioritize good sleep hygiene by establishing a regular sleep schedule, creating a comfortable sleep environment, and avoiding screens before bedtime.

- Consult a Healthcare Provider: Given your symptoms and elevated heart rate, it’s advisable to consult a healthcare provider. They may recommend further tests, such as a Holter monitor or an echocardiogram, to assess your heart's function and rule out any underlying issues.

In conclusion, while an elevated resting heart rate can be concerning, it is often influenced by a combination of lifestyle factors and underlying health conditions. By addressing these factors and seeking appropriate medical advice, you can work towards improving your heart health and overall well-being.

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