The painless heart

“I shall largely speak of mice,” the paper begins “but my thoughts are on man.”So begins a truly extraordinary scientific paper, and an equally extraordinary story.“Death Squared: The Explosive Growth and Demise of a Mouse Population.” was published in 1973 by John Calhoun, and i ...  Show more

In July 2024 a startling scientific paper was published.Headlined ‘Evidence of dark oxygen production at the abyssal seafloor’, scientists told how they had discovered oxygen being made two and a half miles down, at the bottom of the Pacific Ocean.Their claim centred on small pol ...  Show more

The heart’s electrical system keeps all its muscle cells beating in sync. A hard whack to the chest at the wrong moment, however, can set up unruly waves of abnormal electrical excitation that are potentially deadly. The resulting kind of arrhythmia may be what caused the foot ...

This week CrowdScience investigates the information superhighway connecting mind with body. The Vagus nerve is part of our parasympathetic nervous system, delivering information from all our major organs to the brain stem, and stimulating it can help us switch off our fight or ...

Average adults' heart beats 72 times a minute. In a lifetime it creates enough energy to drive the truck to the moon and back and generates astonishingly 2,5 gigajoules of energy. Yet, cardiac arrests and heart diseases are major causes of death worldwide, despite decades of res ...  Show more

A healthier heart equals a healthier brain — no surprise there — but what's the neuroscience behind the benefits of a cardio workout?

Cardiovascular exercise, be it a brisk stroll, a light jog, or an intense interval training session, releases neurot ...