👉 Non-febrile, also known as a "non-rapid心动过速" (NRIF), is a condition that occurs in which the heart rate does not increase significantly when there is no physical activity or stress. It can be caused by various factors such as dehydration, electrolyte imbalances, or underlying medical conditions. Non-febrile states are generally considered to be harmless and do not require treatment unless they become excessive or persistently persistent. However, it's important to note that non
