A new study found shingles vaccination cut older adults’ risk of developing dementia over the next seven years by 20%. The research is part of growing understanding about how many factors influence brain health as we age – and what we can do about it.

Native American women have the highest rate of ovarian cancer. Black women with ovarian cancer have lower rates of survival compared to white women. Finding ovarian cancer early can lead to better chances of survival.

Finland is the happiest country in the world for the eighth year in a row, according to the World Happiness Report 2025 published Thursday. Other Nordic countries are also once again at the top of the happiness rankings in the annual report published by the Wellbeing Research Centre at the University of Oxford.

The genetic mutation linked to Huntington’s has long been known, but scientists haven’t understood how people could have the mutation from birth, but not develop any problems until later in life.

About a million Americans a year are expected to develop dementia by 2060, roughly double today’s toll, researchers reported Monday.

It’s the first time in recorded history that the planet was above a hoped-for limit to warming for an entire year, according to measurements from four of the six teams. Scientists say if Earth stays above the threshold long-term, it will mean increased deaths, destruction, species loss and sea level rise from the extreme weather that accompanies warming.

Researchers aren’t sure whether dinosaurs’ rise over the course of 30 million years happened because of luck, skill, climate or some combination. But they came away knowing this: “It was not a sudden thing,” said study co-author Martin Qvarnström from Uppsala University.

The study found Black women face more than double the rate of severe complications than White women. Additionally, living in high-poverty neighborhoods elevated maternal health risks across all racial groups.

The planting of a non-native milkweed and the practice of captive-rearing monarch caterpillars have been identified as two possible sources of monarchs failure to survive their fall migration.  

Despite the increased awareness of the term among Latinos — 47% have heard of it — only 4% or 1.9 million people use “Latinx” to describe themselves, an increase of 1 percent since 2019, according to the study by the Pew Research Center.

A new report from NYU offers alternative solutions to policing that researchers said would better serve the public and free up police to investigate more serious crimes.

According to the study, Black households have a median net wealth of zero dollars compared to $210,000 for White families, and Black families have the lowest estimated rate of home ownership at 34% compared to 72% for White households.

Alcohol is still more widely used, but 2022 was the first time this intensive level of marijuana use overtook daily and near-daily drinking, said the study’s author.

Employment levels in Chicago and beyond have rebounded since the COVID-19 pandemic, but a new report has found teens and young adults across the city, particularly those of color, are still struggling to find consistent work.

The vast majority of Alzheimer’s cases occur after age 65. But research published Monday suggests that for people who carry not one but two copies of the gene, it’s more than a risk factor, it’s an underlying cause of the mind-robbing disease.

Landfills tend to be a less well-known methane source, but they also have a huge impact, estimated at around 20% of global human-caused methane emissions.