Heart attack patients who don’t have common risk factors like high blood pressure or smoking might actually be more likely to die in the hospital than those who do have those risks — which seems surprising, but that’s what this claim says.

What we've found so far suggests that heart attack patients without common risk factors like high blood pressure or smoking may be more likely to die during their hospital stay than those with such risk factors [1]. This goes against what many might expect, but the evidence we’ve reviewed points in this direction. Our analysis of the available research shows that, in this case, the absence of typical risk factors does not appear to protect against in-hospital death following a heart attack [1]. In fact, the data we examined—53.0 supporting assertions and 0 refuting—indicates a pattern where patients without these known risks might face higher mortality while in the hospital [1]. We don’t yet know why this might be, but one possibility could be that these patients are diagnosed later or receive less aggressive monitoring because their risk profile seems lower. Alternatively, they might have other, less recognized health issues that aren’t captured by traditional risk factors. We want to be clear: this doesn’t mean that lacking risk factors is dangerous in general, nor does it mean that having high blood pressure or smoking is protective. What it does mean is that among people who have already had a heart attack, those without the usual warning signs may face a different, and possibly more dangerous, course once they’re in the hospital. The evidence we’ve reviewed leans toward higher in-hospital death rates in heart attack patients without traditional risk factors [1]. Still, we’re working with a limited set of assertions, and more research could change how we understand this pattern over time. Practical takeaway: If you or a loved one has a heart attack—even without a history of high blood pressure, high cholesterol, or smoking—it’s important to take the situation just as seriously. Early treatment and close monitoring matter, regardless of risk history.