About every 34 seconds, someone, somewhere in the United States dies from heart disease — which remains the leading cause of death for both men and women, according to the American Heart Association.

When patients present with heart disease despite a seemingly healthy lifestyle, it necessitates a deeper, personalised investigation.

Miryam Naddaf is a science writer based in London. In the study, scientists identify a brain–immune circuit that exacerbates cardiovascular pathology during a heart attack. They identified neurons in ...