How do you lose a radioactive capsule? Australian investigators are also wondering

Brisbane, Australia CNN — The discovery of a tiny radioactive capsule lost alongside a lonely highway in Western Australia raises many questions, including how it escaped layers of radiation-resistant packaging loaded onto a moving truck. It’s one of many puzzling aspects of a case that investigators will examine in the coming weeks as they try … Read more

Pregnancy complications linked to higher risk of heart disease, study finds

CNN — According to a new study, five major pregnancy complications are powerful risk factors for ischemic heart disease throughout life, with the greatest risk occurring within a decade of giving birth. Ischemic heart disease refers to heart problems, including heart attack, caused by narrowed or dysfunctional blood vessels that reduce blood and oxygen flow … Read more

EzriCare eye drops: CDC advises against use as it investigates dozens of infections and one death in 11 states

CNN — The US Centers for Disease Control and Prevention is urging healthcare providers and consumers to stop using EzriCare artificial tears as they investigate at least 50 infections in 11 states that have resulted in cases permanent vision loss, hospitalization and one death. Most people with these infections said they used artificial tears, and … Read more

Ultra-processed foods linked to ovarian and other cancer deaths, study finds

Editor’s note: Sign up for CNN’s Eat, But Better: Mediterranean Style. Our eight-part guide shows you a delicious, expert-backed food lifestyle that will improve your health for life. CNN — According to a new study of more than 197,000 people in the UK, more than half of whom were women, eating more ultra-processed foods increases … Read more

Drug use among adults increased during pandemic, but dropped dramatically among young people, study finds

Editor’s note: Sign up for CNN’s Stress, But Less newsletter. Our six-part mindfulness guide will inform and inspire you to reduce stress while learning to harness it. CNN — Marijuana and other substance use dropped among teens in the first year of the pandemic, according to a new study. But adult use of cannabis, illegal … Read more

Screen time may impact academic achievement, study finds

CNN — According to a new study, letting infants watch tablets and TV can harm their academic success and emotional well-being later. According to the study published Monday in the JAMA Pediatrics journal. Executive functioning skills are mental processes that “enable us to plan, focus our attention, remember instructions, and successfully juggle multiple tasks,” according … Read more

With a finch and a fish, this scientist changed our understanding of the tree of life

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. CNN — On the Galápagos Islands, a ground finch that usually nibbled on small, soft seeds was forced during a drought to eat larger, harder ones. Within a few generations, the bird developed a larger … Read more

Around 1,000 US flights canceled as wintry weather rumbles

Editor’s note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter. Get news about opening destinations, inspiration for future adventures, plus the latest in aviation, food and drink, where to stay and other travel developments. CNN — Nearly 1,000 Monday flights have been canceled across the United States as wintry weather shifts to the … Read more

WHO says Covid-19 remains a global health emergency, but pandemic is at ‘point of transition’

CNN — Covid-19 remains a global health emergency, the World Health Organization said on Monday, but it acknowledged the pandemic was at a “point of transition”. WHO’s International Health Regulations Emergency Committee discussed the pandemic on Friday at its 14th meeting on Covid-19, and Director-General Tedros Adhanom Ghebreyesus agreed that the declaration of a public … Read more

Covid-19 is one of the leading causes of death among children in the United States, despite a relatively low death rate

CNN — Covid-19 has become the eighth leading cause of death among children in the United States, according to a study published Monday. Children are significantly less likely to die from Covid-19 than any other age group — less than 1% of all deaths since the start of the pandemic have been among those under … Read more