A low body temperature can occur when you're sick or due to environmental conditions. Here's what you need to know about low body temperature causes and when to worry.

A new study finds that the average human body temperature has declined over the last 2 centuries. This may indicate other physiological changes.

Medical experts have complained that the so-called “normal” 98.6” body temperature isn’t accurate and should be personalized for each patient.

Recent studies suggest 98.6°F may not be the standard for normal body temperature anymore. Learn why our temperatures are dropping and what that means for detecting a fever.

For decades, 98.6 degrees Fahrenheit has been the widely accepted “normal” average temperature for the human body. But new research adds to the growing body of evidence that humans actually ...

Answer • Normal body temperature varies, both during the day (morning temperatures are lowest), among people (normal values in young adults range from 96 F (35.6 C) to 100.8 F (38.2 C), and ...

Most medical professionals agree: over 100.4 degrees Fahrenheit is a fever–though anything above normal body temperature could be a sign you’re fighting illness.

Here’s what you need to know about basal body temperature and its role in fertility and family planning.