What is the Normal Body Temperature Range for Adults? - Family Medicine

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The normal body temperature range for adults is generally accepted to be between 97°F (36.1°C) and 100.4°F (38°C). However, it is important to note that body temperature can vary based on several factors, including the time of day, the method of measurement, and individual differences. For instance, body temperature tends to be lower in the morning and higher in the late afternoon and evening.
When measuring body temperature, different methods yield slightly different results. Oral temperatures are typically about 0.5°F (0.3°C) higher than axillary (underarm) temperatures and about 1°F (0.6°C) higher than rectal temperatures. Therefore, if you measured your temperature using an axillary method, a reading of 37.4°C (99.3°F) is slightly elevated but still within the normal range, especially considering that it can be influenced by factors such as recent physical activity, stress, or even the ambient temperature.

In your case, the readings you provided—37.4°C, 37.2°C, and 37.3°C—are all within the normal range, albeit on the higher end. It is not uncommon for individuals to experience slight elevations in body temperature during illness, such as a cold or flu, which is often a sign that the body is fighting off an infection. The symptoms you mentioned, including a sore throat and phlegm, could indicate a viral infection, which is typically accompanied by mild fever and discomfort.

If you are feeling hot and experiencing other symptoms like fatigue or malaise, it may be beneficial to monitor your temperature regularly and stay hydrated. If your temperature rises above 100.4°F (38°C) or if you experience more severe symptoms, such as difficulty breathing, persistent pain or pressure in your chest, or confusion, it is advisable to seek medical attention.

In summary, your temperature readings are within the normal range, but given your symptoms, it would be wise to continue monitoring your health. If your symptoms persist or worsen, consulting with a healthcare provider would be a prudent step to ensure that you receive appropriate care and management.