Heart attack

CPR is a technique that has saved countless lives since the modern version was developed in the 1960s. However, it turns out it doesn't work very well in zero gravity, so a team of European cardiologists has been testing alternatives for astronauts.

When someone collapses from a heart attack, chances of survival fall 10% with every passing minute without defibrillation. Now, scientists have come up with a novel way to reach cardiac arrests faster – using food-delivery riders as first responders.

The shingles vaccine is up to 97% effective in preventing the condition caused by the herpes zoster virus, which inflames nerves and causes painful rashes. Now, a new metastudy says it may also be a big help in boosting cardiovascular health.

A new generation of nanoparticles can detect, shrink and clear plaques in the arteries, lowering inflammation and drawing out harmful cholesterol to be cycled via the liver. They offer a new way of diagnosing and fighting heart disease without drugs.

A team of researchers have developed a 3D-printed, biodegradable heart patch that seals holes in heart tissue and supports tissue regeneration, showing promise as a safer alternative to current surgical materials.

A fan might feel like a lifeline in a heatwave, and for older adults it may be of some help – but not as much as it might seem. Using an electric fan in humid heat has a small benefit, but in hot and dry conditions, it can do more harm than good.

Most people imagine a heart attack as a dramatic clutch-the-chest collapse. But a new study shows the common mental image of heart attack symptoms rarely reflects reality, and that misunderstanding could cost precious minutes when it matters most.

In 2025, around 24 million Americans are estimated to suffer from sleep apnea, and around 90% of these cases are undiagnosed. Now, a groundbreaking new study warns that the prevalence of this serious condition will soar as the planet warms.

When trying to remove life-threatening clots from blood vessels, current technologies are successful on only about half of the first attempts – if at all. A new surgical tool, however, is claimed to boost that figure to an astounding 90%.

Researchers have identified a previously unknown biological process that causes tissue damage in conditions where oxygen is low, such as heart attacks and strokes. The study suggests that bursting red blood cells, not blood clots, are the culprits.

Researchers have developed technology to detect heart attacks in real time with a high degree of accuracy, and packed it into a chip that could fit in a wearable device. The team hopes it may someday feature in life-saving medical gadgets.

If someone is afflicted with heart disease, it's important that their cardiac activity be monitored as accurately as possible. An experimental new wearable device is designed to make that happen, by copying the body structure of the starfish.