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PrEP is almost 100% effective in preventing HIV infection when taken as directed. The Times/Gallo Images via Getty Images Editorial

Free preventive care under the ACA is under threat again – a ruling exempting PrEP from insurance coverage may extend nationwide and to other health services

Judge Reed O'Connor ruled in a case that coverage for HIV prevention medicine PrEP violated the religious freedom of the plaintiffs. It is unclear whether the order will extend nationwide.
A student wears virtual reality goggles and headphones as part of a digital learning experience. Bill O'Leary/The Washington Post via Getty Images

5 challenges of doing college in the metaverse

There are benefits to taking college classes in the metaverse, but there are also potential problems.
German Bishop Georg Bätzing talks with members of various Catholic youth organizations holding up umbrellas reading “Consecration for All” and “Jesus had two fathers.” Sebastian Gollnow/Picture Alliance via Getty Images

The Catholic Church is increasingly diverse – and so are its controversies

The Catholic Church’s membership numbers are growing fastest outside Europe and the Americas, and Catholics’ priorities look very different across the world.
Ethical and equitable scientific collaboration could help increase the genetic diversity of genomic data. gmast3r/iStock via Getty Images Plus

Uncovering the genetic basis of mental illness requires data and tools that aren’t just based on white people – this international team is collecting DNA samples around the globe

Existing genetic data and sequencing tools are overwhelmingly based on people of European ancestry, which excludes much of the rich genetic variation of the world.
A man reads an Iranian newspaper with a headline in Farsi that says, ‘The night of the end of the JCPOA,’ or Joint Comprehensive Plan of Action. Atta Kenare/AFP via Getty Images

Iran and the US appear unlikely to reach a new nuclear deal – leaving everyone more unsafe

A nuclear nonproliferation expert explains why Iran was always unlikely to return to the 2015 international agreement that limited its nuclear weapon development.
Steve Bannon, second from right, was indicted and charged on Sept. 8, 2022, with alleged money laundering, fraud and conspiracy for deceiving donors and misusing their funds for a charity. David Dee Delgado/Getty Images

Donor beware: Pause before you give to any cause

While the overwhelming majority of charities are legitimate, looking into a charity before supporting it can help you avoid supporting scams and make better-informed decisions.
Whitetip sharks amid a school of anthias near Jarvis island in the South Pacific. Kelvin Gorospe, NOAA/NMFS/Pacific Islands Fisheries Science Center Blog/Flickr

How you can help protect sharks – and what doesn’t work

Sharks are much more severely threatened by humans than vice versa. A marine biologist explains how people can help protect sharks and why some strategies are more effective than others.
Blockchain transactions are carried in blocks. The amount of energy it takes to add a new block varies widely depending on how it’s done. Yuichiro Chino/Moment via Getty Images

What is proof-of-stake? A computer scientist explains a new way to make cryptocurrencies, NFTs and metaverse transactions

Ethereum, one of the world’s largest blockchains and host of decentralized finance, NFTs and billions of dollars’ worth of cryptocurrency, is poised to dramatically reduce its energy consumption.
People catch La Crosse disease primarily from the bite of the eastern tree-hole mosquito – although two other species may also carry the virus. Nipol Plobmuang/EyeEm via Getty Images

La Crosse virus is the second-most common virus in the US spread by mosquitoes – and can cause severe neurological damage in rare cases

Not all cases of La Crosse disease affect the neurological system, but those that do can be severe and sometimes fatal – especially in children.
Creating a safe space for patients to ask questions and provide fully informed consent could help increase clinical trial recruitment. FatCamera/E+ via Getty Images

Yes, Black patients do want to help with medical research – here are ways to overcome the barriers that keep clinical trials from recruiting diverse populations

Overcoming the access barriers and biases that underrepresented and underserved communities face could not only improve research participation but also improve care.