Smoking weed may increase risk of stroke, arrhythmia in young adults, warns American Heart Association

Frequent use of cannabis in young adults was linked to an increased risk of stroke, and people diagnosed with cannabis use disorder were found to be more likely to being hospitalized for arrhythmia (heart rhythm disturbances), according to two new studies that were presented at the American Heart Association’s Scientific Sessions 2019.

Astronauts experience stagnant and reverse blood flow during long periods in space, study finds

A study looking into how zero gravity can affect blood flow in the body showed astronauts staying onboard the International Space Station for long periods of time can face health risks.

Thousands of costly heart procedures each year could be unnecessary, study finds

The findings of a large study suggest thousands of costly stent procedures and bypass operations each year are unnecessary or premature for people with stable disease.

Old dogs, new tricks: 10,000 pets needed for largest-ever study of aging in canines

The project will collect a pile of pooch data: vet records, DNA samples, gut microbes and information on food and walks. Five hundred dogs will test a pill that could slow the aging process.

Spider and insect populations are declining at ‘frightening’ rates, scientists say

Insect and spider populations are falling dramatically across the globe, spurring concern throughout the scientific community, and a new study suggests that the decline may be happening more quickly and extensively than previously suspected.

Antibiotic-resistant superbugs kill 35K Americans each year — and CDC warns worst is yet to come

In recent decades, scientists have consistently warned that humanity was headed full-speed toward an antibiotic-resistant future. A new report from the CDC says that future is already here.

20 minutes of moderate exercise each day could boost US economy by up to $200 billion by 2050, analysis suggests

Raising the physical activity levels of adults worldwide by a nominal amount could raise the global economy by as much as $446 billion USD by 2050, according to a new analysis from RAND Europe.

This panda has some serious, and adorable, attachment issues

It’s not every day that you receive bear hugs while at work, unless it’s your job to take care of pandas.

Narcissism is a dark trait, but it may protect against stress and depression, study suggests

Narcissism — one of the three malevolent personality traits which comprise the “dark triad” in psychology — may actually have certain protective benefits against stress and mood disorders, such as depression.

Most distant world ever explored gets a new name: Arrokoth

NASA's New Horizons spacecraft flew past the snowman-shaped Arrokoth on New Year's Day, years after exploring Pluto. At the time, this small icy world 1 billion miles beyond Pluto was nicknamed Ultima Thule given its vast distance from us.

New strain of HIV detected for the first time in 19 years

A team of scientists discovered a new strain of HIV for the first time in 19 years and published the findings Wednesday.

Massive 2,000-foot asteroid to whiz past Earth later this month

An asteroid slightly smaller than the largest structure in the U.S. is slated to harmlessly zoom past Earth later this month.

NASA’s Mars Curiosity rover captures the lonely landscape of the red planet in eerie new photos

As NASA’s Mars Curiosity rover continues to venture along the vast landscape of the red planet, a series of unsettling photographs was recently sent back to Earth, capturing a truly eerie and lonely landscape.