What Is the Number One Cause of Stress?

Money and work have long traded the top spot as the most common source of stress for American adults, and they remain the dominant everyday stressors. In the most recent Stress in America survey from the American Psychological Association, 65% of employed adults rated work as a significant source of stress, and 64% said the same about money. These two consistently outpace every other category, year after year.

That said, the 2024 survey revealed an unusual spike: 77% of adults named the future of the nation as their top stressor, making it the single most reported source of stress that year. But that figure reflects a politically turbulent moment rather than a lasting pattern. Strip away the headline-grabbing national anxiety, and the stressors people live with day in, day out are financial pressure and workplace demands.

Why Money and Work Top the List

Financial stress isn’t just about being broke. It covers the gap between what you earn and what life costs: rent, groceries, medical bills, student loans, retirement savings. Even people with stable incomes report money stress when they feel one unexpected expense away from trouble. The 64% figure from the APA survey spans every income bracket, though lower-income households feel it more acutely.

Work stress is nearly as common at 65% of employed adults. The primary triggers are job insecurity, constantly increasing workloads, and poor communication from management. Those three factors feed each other. When you’re unsure whether your position is safe, every added task feels heavier, and silence from leadership makes the uncertainty worse. People in midlife, especially millennials and Gen Xers, report significantly higher employment and financial concerns than younger or older adults, largely because they’re juggling peak career demands alongside childcare and aging parents.

Family and Relationships Add a Second Layer

After money and work, family responsibilities come next at 56%, followed by relationship stress (with a partner, children, or close family) at 49%. These numbers are notable because relationship stress is the one category where roughly half of adults say it’s not a significant source of stress at all. In other words, relationships are highly polarizing: they’re either a major pressure point or largely fine. There’s less middle ground than with money or work, which stress most people at least somewhat.

Family and relationship stress also compounds financial and work stress rather than existing separately. Worrying about money strains a marriage. Long hours at work reduce the energy available for parenting. The stressors on this list rarely operate in isolation.

How Stress Affects Your Body

When you perceive a threat, whether it’s a looming bill or a tense conversation with your boss, your brain activates a hormonal chain reaction. A region deep in the brain signals the release of stress hormones, which then trigger cortisol production from your adrenal glands. This is your body’s primary hormonal response to any perceived challenge.

What makes financial and work stress particularly damaging is that the threat never fully resolves. Your brain can launch this stress response based on anticipation alone. Simply worrying about a future layoff or an upcoming rent payment activates the same hormonal pathway as an immediate physical danger, just through a different neural route. Instead of sensory signals driving the response directly, the emotional processing centers of your brain suppress the signals that normally keep stress hormones in check. Your body essentially removes the brakes on its own stress system.

Over time, this chronic activation takes a measurable toll. A large study published in JAMA Network Open, covering 21 countries, found that people with high stress levels had a 22% greater risk of cardiovascular disease, a 24% greater risk of coronary heart disease, and a 30% greater risk of stroke compared to people with no stress. Low or moderate stress didn’t carry the same elevated risk. It’s the persistent, high-level stress that does the damage.

Stress Is Rising Globally

This isn’t just an American problem. Gallup’s 2024 global survey across 144 countries found that 37% of adults worldwide experienced stress the previous day, and 39% reported significant worry. Both figures are higher than they were a decade ago, part of a steady upward trend in negative emotions globally. Sadness (26%) and anger (22%) are also climbing, but stress and worry lead by a wide margin.

The drivers vary by region. In wealthier nations, work-life balance and financial insecurity dominate. In lower-income countries, basic economic survival and political instability play a larger role. But the pattern is consistent: more people are reporting daily stress now than at any point in Gallup’s tracking history.

Digital Overload as a Growing Factor

One stressor gaining ground doesn’t yet appear in the major national surveys as its own category, but research is increasingly flagging it: digital burnout. Extended time on screens, constant notifications, and the pressure to stay connected are contributing to what researchers call technostress, a combination of information overload, the feeling that technology invades personal time, and anxiety about keeping up with new tools.

A 2025 study of university students found high levels of digital burnout driven primarily by academic pressures rather than recreational screen use. The correlation between digital burnout and psychological distress was strong (0.71 on a scale where 1.0 is a perfect match). Students managing five or more courses that required heavy screen time were at the highest risk. While this research focused on students, the pattern applies broadly to anyone whose work and personal life are mediated almost entirely through screens.

What Shifts With Age

Your primary stressor changes depending on where you are in life. Younger adults, particularly Gen Z, tend to report higher stress around social comparison, identity, and broad societal concerns. Millennials and Gen Xers carry the heaviest load of financial, employment, and caregiving stress because they’re in the years of raising children while sometimes also supporting aging parents. Older adults generally report lower overall stress levels, though health concerns become more prominent.

This life-stage pattern explains why money and work remain the top stressors in national data: they hit hardest during the decades when people are most economically active and financially stretched, which is also when they’re most likely to be surveyed as working adults. The stress doesn’t necessarily disappear in retirement. It shifts shape, from “Can I pay this month’s bills?” to “Will my savings last?”