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The book includes haunting photos from inside the ghetto, along with its record of the medical effects of starvation. 'Maladie de Famine," American Joint Distribution Committee

Warsaw Ghetto’s defiant Jewish doctors secretly documented the medical effects of Nazi starvation policies in a book rediscovered on a library shelf

The story behind the research can be as compelling as the results. Recording the effects of starvation, a group of Jewish doctors demonstrated their dedication to science – and their own humanity.
Telomeres (red) at the ends of chromosomes protect your DNA from damage. Thomas Ried/NCI Center for Cancer Research, National Cancer Institute, National Institutes of Health via Flickr

Cells become zombies when the ends of their chromosomes are damaged – a tactic both helpful and harmful for health

The protective caps at the ends of chromosomes naturally shorten over time. Researchers found that direct damage can prematurely trigger senescence and contribute to age-related diseases like cancer.
There’s an interesting evolutionary benefit for some women if the consequences of casual sex are high. Albin Lohr-Jones/Pacific Press/LightRocket via Getty Images

What really drives anti-abortion beliefs? Research suggests it’s a matter of sexual strategies

Some reasons people oppose abortion seem to be at odds with other positions they hold. Evolutionary social science points to a surprising motivation for anti-abortion attitudes.
Monkeypox is caused by the monkeypox virus, which are the ovals and circles seen in this electron microscope image of the skin of a person infected with monkeypox. Cynthia S. Goldsmith, Russell Regnery/CDC

Is monkeypox a pandemic? An epidemiologist explains why it isn’t likely to become as widespread as COVID-19, but is worth watching

The monkeypox virus, which is commonly found in West and Central Africa, is now causing many infections in the U.S., Europe and Latin America.
TRAPPIST-1e is a rocky exoplanet in the habitable zone of a star 40 light-years from Earth and may have water and clouds, as depicted in this artist’s impression. NASA/JPL-Caltech/Wikimedia Commons

To search for alien life, astronomers will look for clues in the atmospheres of distant planets – and the James Webb Space Telescope just proved it’s possible to do so

Life on Earth has dramatically changed the chemistry of the planet. Astronomers will measure light that bounces off distant planets to look for similar clues that they host life.
Does a painting from 1400 depict one of Jesus’ torturers as suffering from ‘saddle nose,’ a common effect of syphilis? Detail of an Austrian painting c. 1400 of the Passion of Christ, The Cleveland Museum of Art

Manuscripts and art support archaeological evidence that syphilis was in Europe long before explorers could have brought it home from the Americas

The idea that Europeans brought new diseases to the Americas and returned home with others has been widely accepted. But evidence is mounting that for syphilis this scenario is wrong.
Stem cell transplants involve completely eliminating and then replacing the immune system of a patient, often by transplanting the bone marrow. xia yuan/Moment via Getty Images

Gut bacteria nurture the immune system – for cancer patients, a diverse microbiome can protect against dangerous treatment complications

Patients with blood cancer undergoing stem cell transplantation have a high risk of complications. The bacteria in their gut, however, can help their immune system recover and fight infections.
Evolutionary psychology may explain why magical thinking is so central to love. Viva Luna Studios via Unsplash

Why does love feel magical? It’s an evolutionary advantage

It’s not logical to believe your relationship is “meant to be.” But believing in destined love may have evolved as a way to keep couples together long enough to reproduce and raise children.
A nanographene molecule imaged by noncontact atomic force microscopy. Patrik Tschudin/gross3HR/Wikimedia Commons

What do molecules look like?

A physicist explains how atoms arrange themselves into molecules – and how scientists are able to image these tiny bits of matter that make up everything around you.
Depending on how you look at it, drugs that can act on multiple targets could be a boon instead of a challenge. Andrew Brookes/Image Source via Getty Images

Many medications affect more than one target in the body – some drug designers are embracing the ‘side effects’ that had been seen as a drawback

Many approved drugs work on the body in ways that researchers still aren’t entirely clear about. Seeing this as an opportunity instead of a flaw may lead to better treatments for complex conditions.
China and the U.S. both have big plans for the Moon, but there are a number of reasons why no country could actually claim ownership of any land there. 3dScultor/iStock via Getty Images

NASA’s head warned that China may try to claim the Moon – two space scholars explain why that’s unlikely to happen

A comment by Bill Nelson, the NASA administrator, sparked a strong public response from the Chinese government. But due to legal and practical reasons, no country could take over the Moon anytime soon.
Social media is flush with advice urging non-menstruating people to use period tracking apps in order to trip up the apps’ algorithms. Westend61 via Getty Images

No, submitting junk data to period tracking apps won’t protect reproductive privacy

It would take huge numbers of people submitting bad data to affect the algorithms behind period tracking apps, but even then it would be more harmful than helpful.
Advances in artificial intelligence and technology have allowed researchers to better explore the mechanisms behind neurostimulation. Iryna Spodarenko/iStock via Getty Images

Brain stimulation can rewire and heal damaged neural connections, but it isn’t clear how – research suggests personalization may be key to more effective therapies

Existing brain connections may influence the effectiveness of neurostimulation. Tailoring treatments to each individual brain could expand the number of conditions brain stimulation can treat.