Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists think they may have finally discovered the reason why human body temperature has been decreasing over the past ...

Doctronic explains that persistent coldness could indicate health issues like hypothyroidism or anemia. Factors include ...

As heat waves continue to last longer and become more severe, the zone of "non-survivable" conditions is expanding.

Two T-shirts made from the same base fabric (90% polyamide / 10% spandex) were evaluated under controlled laboratory ...

That thermometer reading you barely glance at during a doctor’s visit? It might be hiding critical information about your health that goes far beyond checking for a fever. While we’ve long treated ...

As temperatures around the world rise because of climate change, the human body is increasingly confronting a little-understood and increasing hazard: excessive heat. From enduring heatwaves to ...

Common knowledge says that your body temperature should be 98.6 degrees F and that a high or low body temperature signals something is wrong. But that's not quite true. You can have a low body ...

This lesson plan teaches students how the human body self-regulates to maintain a stable internal environment despite changes in the external environment -- a process called homeostasis. Most of the ...

Throughout history, people have had to find ways to cope with varying environmental conditions. Whether they lived in a hot or cold climate or had access to plentiful or limited water, they adapted ...

How do you cool yourself on a hot day? Perhaps you find shade, switch on a fan or retreat to air conditioning? But spare a thought for tropical forest trees. As the climate warms, they must either ...