Human heart can regrow muscle cells after heart attack, study finds

January 20, 2026 12:13 PM

Human heart can regrow muscle cells after heart attack, study finds

Scientists in Australia have found that the human heart is capable of regenerating muscle cells after a heart attack, a discovery that could pave the way for new regenerative treatments for heart failure. The study, published in the journal Circulation Research, shows that while portions of the heart remain scarred following a heart attack, new muscle cells are also formed — a phenomenon earlier observed only in mice and now demonstrated in humans for the first time. Researchers analysed liv...

Heart attack risk underestimated in 45% of cases under existing screening methods: Study

November 24, 2025 10:05 PM

Heart attack risk underestimated in 45% of cases under existing screening methods: Study

A new study has found that existing cardiac screening tools may be failing to identify nearly 45 per cent of individuals who are actually at risk of suffering a heart attack. The findings point to gaps in current assessment methods that rely mainly on symptoms and risk-score calculations. The research, led by scientists from Mount Sinai in the US, has been published in JACC: Advances. It assessed whether two commonly used tools — the atherosclerotic cardiovascular disease (ASCVD) risk score a...