Newborns with heart complications can rely on their newly developed immune systems to regenerate cardiac tissues, but adults aren’t so lucky. After a heart attack, most adults struggle to regenerate healthy heart tissue, leading to scar-tissue buildup and, often, heart failure. A new study in experimental animals reveals a critical difference in how macrophages — a part of the immune system — help repair the heart in newborns versus adults after a heart attack. The study highlights a fundamental difference in how the immune system drives healing based on age.

A new study has discovered in mouse models that genes associated with repairing mismatched DNA are critical in eliciting damages to neurons that are most vulnerable in Huntington’s disease and triggering downstream pathologies and motor impairment, shedding light on disease mechanisms and potential new ways to develop therapies.

Researchers have developed a new AI algorithm, called Torque Clustering, that significantly improves how AI systems independently learn and uncover patterns in data, without human guidance.

New research has found exposure to outdoor air pollution and extreme temperatures during pregnancy may increase the risk of prolonged pregnancy, offering new insights into the impact of climate change on maternal health.

Short snouts and a flat profile — within a span of 100 years, humans have significantly changed the shape of the skulls of German domestic pigs. This is likely down to new breeding practices introduced at the beginning of the 20th century. The researchers analyzed 3D scans of 135 skulls of wild boars and domestic pigs from the early 20th and 21st centuries. Surprisingly, the same effects can even be observed in species that were kept separately.

Euclid, the European Space Agency’s dark Universe detective, has made an astonishing discovery — right in our cosmic backyard.

In a randomized clinical trial, giving the clot-busting medication alteplase up to 24 hours after stroke symptoms first appeared increased the odds of better recovery by 50% compared to those who received standard antiplatelet treatment.

Scientists have identified genetic components in bats that provide insight into their immune systems.

Mitochondria are essential for generating energy that fuels cells and helps them function.

A scientist has discovered a hopping treasure trove — 16 new species of grasshoppers living in the thorny scrubs of U.S. and Mexican deserts.