Everything You Need To Know About Normal Body Temperature

Here's what you need to know about body temperature

Body temperature is your body’s ability to generate and get rid of heat. By widening or narrowing your blood vessels, your body effectively cools or heats itself. With this clever system, your body keeps your temperature within a healthy range. 

The average body temperature is often said to be around 98.6°F (37°C). However, your ‘normal’ temperature can range anywhere from 97°F (36.1°C) to 99°F (37.2°C).

Factors influencing your temperature

During the day, your temperature fluctuates constantly. Different factors influence your temperature, such as...

  • Time of day
    Your temperature increases during the day.

  • Age
    As you get older, your ability to regulate body temperature decreases.

  • Physical activity
    Heat production increases during exercising. Your body loses this heat through sweating.

With a thermometer for adults, such as the DTR-1835, you can learn a lot about your normal body temperature. 

The DTR-1835, iProven's digital thermometer for adults, allows you to measure your temperature orally, axillary, or rectally. The last method is also safe to measure the baby’s temperature. The DTR-1835 is designed for adults. 

Always read the instructions first to make sure the measurement is as accurate as possible.

Thermometer for adults

Business Insider

The iProven thermometer is remarkably easy to use and designed for use on adults, kids, and babies. It's our pick for The Best Thermometer Overall."
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Tom's Guide

"The iProven works quickly. Testers results were nearly instantaneous. The iProven has enough flexibility to make it our pick for the best thermometer."
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"Squirming kids are no match for the iProven DMT-489 thermometer. This is our pick as Best Thermometer for Kids in 2020."
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The Bump

"When you have a sick baby on your hands, the last thing you want to deal with is trying to take baby’s temperature. The iProven gets it done fast—and with accuracy."
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Digital Trends

The digital display is large and super easy to read, which is great for when you’re feeling woozy."
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New York Times

"Our Recommended Overall Ear & Forehead Thermometer in 2020."
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CNN Underscored

"If you want a thermometer for every member in your family to use, then the iProven No-Touch Thermometer fits the bill."
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Mom Loves Best

"This is our Pick for the Best Digital Basal Thermometer. It comes with high precision, all inclusive good package value."
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Verywell Familty

"If you want an accurate reading, reach for this rectal thermometer from iProven. It's our pick for best budget thermometer of 2021."
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After reaching out to iProven I felt relieved. They made the process and purchasing so simple. They helped us out on pricing and for being a non-profit. The thermometers were shipped and delivered within days! I would highly recommend this company to anyone. I am so glad we got a chance to work with them.”
-Sarah Pettys from

California Rural Indian Health Board Inc.

“Thank you again iProven for your patience from day one and for always keeping me aware of any changes, delivery status, shortages, etc. Your professional work ethics are superior. Such a pleasure working with you and your team!” 
-Michelle Thomas from