How does heat kill? It confuses your brain. It shuts down your organs. It overloads your heart.

As temperatures and humidity rise outside, what happens inside the human body can become a life-and-death struggle decided by just a few degrees. The outdoor critical danger point for illness and death from brutal heat is several degrees lower than experts once thought, say researchers who put people in hot boxes to see what happens … Read more

Did Dinosaur Blood Run Hot or Cold? Both, according to a new study

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Were dinosaurs warm-blooded like birds and mammals or cold-blooded like reptiles? It’s one of paleontology’s oldest questions, and finding the answer is important because it sheds light on how prehistoric creatures lived and behaved. Research … Read more

Did Dinosaur Blood Run Hot or Cold? Both, according to a new study

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Were dinosaurs warm-blooded like birds and mammals or cold-blooded like reptiles? It’s one of paleontology’s oldest questions, and finding the answer is important because it sheds light on how prehistoric creatures lived and behaved. Research … Read more

Health Canada has officially approved the Natural Cycles birth control app. Should I use it to prevent pregnancy?

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. Consult a qualified medical professional before undertaking any physical activity or making any changes to your diet, medication, or lifestyle. Natural Cycles is the first birth control app approved in Canada to prevent pregnancy. Health Canada … Read more