Health experts on Thursday warned gym goers, especially those in their mid-30s and 40s, should get themselves properly evaluated by doctors before beginning their exercise regimen, as sudden heart attacks returned in India, claiming the lives of at least four people -- three young adults and one minor -- in Uttar Pradesh and Gujarat in the last 24 hours.

The tragic news has raised fresh concerns over the fatal disease, which soared significantly in the country post the Covid-19 pandemic.