What factors affect my resting heart rate?

There are many factors that can affect a heart rate reading, whether you are in a rested state or not.  Here are a few of the key players:
o Certain stimulants (such as caffeine) and medications (that constrict or dilate your arteries) would impact a reading. 
o Being overweight means that your heart has to work overtime to deliver essential nutrients. 
o Temperature and hydration level can also have an effect on your heart rate.  Hot weather would increase your heart rate, as would dehydration. 
o Your cardiovascular fitness level is a measure of how efficient your heart is at delivering blood to the body.  Becoming more aerobically fit will strengthen your heart, increasing its efficiency and decreasing your resting heart rate.
o Anxiety and stress can also elevate heart rate.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.