The beginnings of measuring fever go back more than 400 years.
Around 1.5 billion people worldwide have this common genetic variant.
Everything from hormones to certain heath conditions can affect how we feel.
'Normal' body temperature has declined in urban, industrialized settings like the US and UK. Anthropologists find the trend extends to Indigenous people in the Bolivian Amazon – but why?
Using infrared thermal imaging to screen for COVID19 poses no risk to the public but must be done correctly to be reliable.
'Normal' body temperature varies from person to person by age, time of day, where it's measured, and even menstrual cycle. External conditions also influence your thermometer reading.
'Wet-bulb' temperature records show that deadly thresholds for heat and humidity are arriving faster than anticipated.
Winter comes with colder temperatures. You and your body can work together to stay comfortable.
Everyone has a different ideal temperature at any given time. It could be more comfortable to monitor people's body temperatures and adjust heating and cooling in response.
It's not as simple as saying you won't 'feel the benefit'.
Sweat comes from special parts in our skin called glands. You might be able to see them if you have a very strong magnifying glass.
Techniques and technology can help athletes perform at their best even in freezing temperatures.
They say 'men sweat, while women glow'. But new research shows gender is not the reason for different levels of sweating.
Some people swear by cold showers to cope with a long, hot summer. Here's why they'd be better off taking a warm one.
Researchers are finding new ways to keep them cool.
Here's the science.