Iran warns Israel that it will face retaliation for its airstrike on Syria

A Single Hormone in Men May Predict Their Future Health

A Rare Blood Type Variant Helps Prevent Malaria. Now We Finally Know HowWildfire Smoke Could Leave Lungs Vulnerable to COVID-19 And The Flu, Warn Scientists

CDC Just Reversed Its Controversial COVID-19 Testing GuidelinesNew Research Helps Explain Why Tiny Humans And Animals Sleep So MuchOver Half of COVID-19 Patients in a New Study Are Suffering Long-Term Fatigue

Scientists Call That New Paper About Intentional Release of SARS-CoV-2 "Poppycock"E-Cig Clouds Aren't 'Vapour', Scientists Warn. That Word Just Makes Them Sound Safer

Teen 'Blasts Away' Parts of Retina by Staring Into a Pet's Laser Pointer

Eating Healthy Foods May Be More Important Than How Much You WeighThat Weird Link Between Sense of Smell And Death Risk Continues to Defy Explanation

It's Not Just You – We're All Sadder, Angrier And More Worried Than Ever, Study FindsA Chronic Fatigue Blood Test Looks Increasingly Promising, But It's Still Early Days

Unsure About Vaccines? These Brutal Images Show What Measles Actually Does to KidsWhy Are You Always Tired, Even Though You Get Enough Sleep? Science Has Some Answers