See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. New research has discovered an unexpected way pregnancy alters the ...

Adjusting the thermostat could make a difference in how well brains work for the elderly. In a yearlong study published in the Journal of Gerontology, researchers at the Hinda and Arthur Marcus ...

New research is shedding light on how environmental factors, particularly indoor temperature, can affect brain function in older individuals. A study has revealed that deviations from an optimal ...

You have gone without food for days, and the temperature drops to near freezing. What do you do? For some animals, the answer is influenced by the brain's circadian clock. Hummingbirds, bats, and mice ...

Vertebrates have extremely different brain sizes: even with the same body size, brain size can vary a hundredfold. As a rule, mammals and birds have the largest brains in relation to their body size, ...

Maintaining a stable body temperature is essential for survival. Animals, including humans, use both autonomic processes -- such as shivering or activating brown fat -- and behaviors -- such as ...

Mothers experience major metabolic adaptations during pregnancy and lactation to support the development and growth of the new life. Although many metabolic changes have been studied, body temperature ...

Most vertebrates, including humans, yawn or exhibit similar behaviors. Spotted hyenas, which live in groups, yawn, as do orangutans, which often live alone. Parrots, penguins, and crocodiles also yawn ...