Over the past ten years, fatalities from severe heart attacks in individuals under 55 have surged, suggesting that younger adults should be just as vigilant about heart attack risks as older generations.

New findings highlight an alarming increase in catastrophic heart attacks among younger individuals, a condition historically associated with those in their 60s and older.

While the overall risk of dying from a heart attack has plummeted by nearly 90% since the 1990s, the rate of fatal first-time heart attacks among adults aged 18 to 54 is climbing at a worrisome rate each year.

A study released this week by a team of international researchers and cardiologists revealed that between 2011 and 2022, deaths from severe first heart attacks among adults 18 to 54 increased by 57%. This rise is largely attributed to high incidences of diabetes, chronic kidney disease, and drug use.

The researchers examined data spanning from 2011 to 2022, focusing on first-time heart attacks in young adults aged 18 to 54 in the U.S. They differentiated between two types of heart attacks: the more lethal STEMI and the less severe NSTEMI, analyzing the results by gender.

The primary objective was to determine hospital death rates and observe changes over time. They also assessed complications and considered both traditional risk factors, such as smoking and hypertension, as well as nontraditional ones, including sleep and mental health issues.

Women consistently faced worse outcomes than men, receiving fewer procedures and dying at higher rates. When it came to predicting death, nontraditional factors, like stress, sleep, and mental health, mattered more than the usual suspects, including age, smoking, high blood pressure, diabetes and obesity. 

Roughly 805,000 Americans have a heart attack each year, translating to one every 40 seconds. Of those, at least 285,000 experience a STEMI, which kills up to 10 percent of patients when caught early, a rate that shoots up to 38 percent when a person enters cardiac arrest.

The first sign of a heart attack for 24-year-old Raquel Hutt [pictured] was a sudden, searing pain in her left arm. She described it as the most intense pain she had ever felt

Dr Mohan Satish, a cardiologist at New York-Presbyterian Hospital and the study’s lead author, said: ‘We often think heart attacks are mainly an older person’s problem; however, our findings indicate that younger adults, especially women, are at real risk.’

Researchers analyzed almost one million hospital records from a national database, focusing on adults 18 to 54 who were hospitalized for their first heart attack between 2011 and 2022, according to the latest report in the Journal of the American Heart Association. 

The cases were separated into two groups: STEMI and NSTEMI.

A STEMI happens when a coronary artery is completely blocked, cutting off blood flow to a large area of heart muscle and requiring immediate emergency care.

An NSTEMI involves a partial blockage or a temporary closure that still damages the heart but does not meet the criteria for a STEMI. 

What makes the study unique is what the researchers accounted for. They did not just look at traditional risk factors.

Researchers also examined income, mental health, drug use, inflammatory diseases and pregnancy complications, allowing them to pinpoint what truly predicts death. 

Matias Escobar [pictured] nearly died from a heart attack competing in the New York City Triathlon, despite cholesterol and blood pressure readings that had all checked out beforehand

The study revealed several major findings, with the first being that deaths from a first-time STEMI saw a 57 percent relative increase that held up even after researchers accounted for all known risk factors.

Death rates due to NSTEMI held steady, though, at just under one percent throughout the study period. 

Researchers also found that women consistently fared worse than men. They were more likely to die in the hospital from both types of heart attacks and received fewer cardiac procedures like bypass surgery, despite their complication rates being just as high as men’s.

Third, when it came to predicting death, nontraditional risk factors, including low income, chronic kidney disease and drug use, mattered more than traditional ones like smoking or high blood pressure.

This was especially true for STEMI, suggesting that what doctors consider standard heart risk factors may not fully apply to young adults.

Researchers concluded: ‘Our findings raise further concern of possible delays in both atherosclerotic cardiovascular disease risk recognition and treatment in young adults.’ 

Raquel Hutt, a 24-year-old from New York City, experienced her first warning sign of a heart attack while using the bathroom. She felt a shooting pain in her left arm that she described as the ‘worst pain of my life.’ 

In the moments that followed, she realized something was seriously wrong. That pain turned out to be the first sign of a heart attack that landed her in the hospital.

The figure shows how death rates from the most severe type of first heart attack (STEMI) changed over time among young adults. Overall, in-hospital death rates due to a first-time STEMI saw a 57 percent relative increase from 2011 to 2022

Meanwhile, Matias Escobar, a 38-year-old triathlete, was competing in the final leg of the New York City Triathlon when his heart suddenly stopped. For twelve minutes, he had no pulse as paramedics performed CPR on the course. He had suffered a STEMI.

After several days in a coma and surgery to place a stent in his blocked artery, Escobar survived. But his case baffled doctors. Here was a seemingly healthy, athletic man whose cholesterol and blood pressure had all checked out before the race. 

Further investigation revealed subtle clues, including elevated inflammation markers and a history of high cholesterol that had gone unaddressed. 

A range of risk factors is at play and becoming more prevalent among teens and young adults, setting them up for a chronic health problem that makes them susceptible to resulting complications, including heart disease and heart attack.

A study published in PLOS Global Public Health this week reported that prediabetes and diabetes, which significantly increase the risk of heart attack, stroke and heart disease, are now widespread among young people. Nearly one in three American adolescents ages 10 to 19 – 31 percent – have prediabetes or type 2 diabetes.

Among young adults, the numbers are similarly troubling. Roughly one in four ages 18 to 25 are living with prediabetes, according to a 2020 CDC study in JAMA Pediatrics.

Chronic kidney disease, a major risk factor for heart attack, is also on the rise in young people. From 1990 to 2021, chronic kidney disease incidence among young adults ages 15 to 39 worldwide rose by 33.6 percent, increasing from 27 to 36.1 cases per 100,000 people.

Another 2024 analysis found the global age-specific incidence rate jumped from 25 per 100,000 people in 1990 to 32 per 100,000 people in 2019, a 28.6 percent increase. The most rapid growth occurred between 2019 and 2021.

The graph shows unadjusted in-hospital mortality rates for first-time heart attacks among young adults, broken down by sex and heart attack type. For the more severe type (STEMI), 3.1 percent of women died in the hospital compared to 2.6 percent of men, a statistically significant difference

Lastly, drug-related deaths have fallen over the past couple of years, but they remain alarmingly high, driven primarily by synthetic opioids like fentanyl. An estimated 73,000 people died from overdoses in the 12-month period ending August 2025, down from a peak of nearly 110,000 in 2022. 

Drug use directly damages the heart. Stimulants like cocaine and methamphetamine spike blood pressure, constrict arteries and trigger spasms that cut off blood flow, causing heart attacks even in people with plaque-free arteries.

Opioids slow breathing, starving the heart of oxygen and triggering dangerous rhythms. When fentanyl is mixed with a stimulant, use becomes even deadlier. A 2024 NIH-funded study found that recreational drug users were 13 times more likely to experience a major cardiac event than non-users.

Satish said: ‘Improving heart attack outcomes in adults younger than age 55, particularly women, will require earlier risk identification and consideration of nontraditional risk factors to improve treatment.

‘Future studies need to consider how nontraditional risk factors impart heart attack risk along with their impact on traditional risk factors.’