What Causes Stress at Work? 12 Common Triggers

You leave work tired and tense, but you can’t quite say why. Was it the meetings? Your boss? The 200 messages waiting for you?

Most of the time, it is a mix of things. Workplace stress rarely comes from one big problem. It builds up from many small ones.

The good news is that once you know what causes stress at work, you can start to fix it. This guide covers the 12 most common causes of stress on the job. For each one, you will also get a simple tip to help you feel calmer.

Why It Helps to Know Your Stress Triggers

Stress triggers are the people, tasks, or situations that set off your stress response. When a trigger hits, your brain sounds an alarm. Your body releases adrenaline and cortisol. Your heart beats faster and your blood pressure goes up. This is the fight or flight reaction.

That reaction is helpful in short bursts. But when the same workplace stressors hit you day after day, the alarm never turns off. Over time, this leads to chronic stress and even burnout.

You can’t fix what you can’t name. That is why the first step in stress management is to identify your stressors.

Work stress is also very common. In the Gallup State of the Global Workplace report, half of workers in the U.S. and Canada said they felt a lot of stress the day before (Gallup, 2026). So if you feel stressed, you are in good company.

What the Experts Say Causes Job Stress

The National Institute for Occupational Safety and Health (NIOSH), part of the Centers for Disease Control and Prevention, says job stress happens when the demands of a job don’t match a worker’s skills, resources, or needs (NIOSH).

In the U.K., the Health and Safety Executive uses six Management Standards to spot the main risks for occupational stress (Health and Safety Executive):

1. Demands (like workload)
2. Control (how much say you have)
3. Support (from your manager and coworkers)
4. Relationships (conflict and behavior at work)
5. Role (how clear your job is)
6. Change (how changes are handled)

Most of the triggers below fit into one of these six areas.

12 Common Causes of Stress at Work

1. A Heavy Workload

This is the most common cause of stress at work. When you have too much work and not enough time, you feel behind all day. Your to-do list grows faster than you can shrink it.

A heavy workload often leads to long hours and unpaid overtime. It eats into your evenings and weekends.

Try this: List everything on your plate. Then prioritize using the Eisenhower Matrix, which sorts tasks by how urgent and how important they are. Our guide on how to prioritize when everything is urgent shows you how.

2. Tight Deadlines

Deadlines can be helpful. They keep work moving. But tight deadlines and unrealistic deadlines put you in a constant rush.

When every task is “due yesterday,” your body stays in fight or flight. You make more mistakes, which adds even more stress.

Try this: When you get a new deadline, ask: “What is the real due date, and what is the minimum I need to deliver?” Then block time on your calendar to get it done. Learn how in time blocking for a calmer workday.

3. Lack of Control

Feeling like you have no say in your work is very stressful. You may not get to choose your tasks, your hours, or how you do your job.

Lack of control often comes from micromanagement. A micromanaging boss checks every step and leaves you no room to think for yourself. Research has long linked low autonomy to higher stress.

Try this: Look for small areas you can control. This might be the order of your tasks or when you check email. Even small choices can help. If your boss hovers, read how to handle a micromanaging boss.

4. Unclear Expectations

Do you know exactly what your job is? Do you know what “great work” looks like? If not, you are not alone.

Unclear expectations and an unclear job role leave you guessing. Experts call this role ambiguity. Role conflict is a close cousin. It happens when two people want different things from you, and you can’t please both.

Poor communication makes all of this worse.

Try this: Ask your manager or team lead to write down your top three goals. Check in often so there are no surprises at your performance review.

5. A Difficult Boss

A difficult boss can turn a good job into a daily struggle. A bad manager might yell, blame, play favorites, or never give clear answers.

Because your supervisor has power over your pay and future, stress from this relationship can feel especially heavy.

Try this: Stay calm, keep notes, and focus on facts. Our guide on how to stay calm with a difficult boss has step-by-step tips.

6. Coworker Conflict and a Toxic Culture

Coworker conflict, office politics, and gossip can drain your energy fast. Dealing with a toxic coworker every day is exhausting.

In some places, the whole culture is the problem. A toxic workplace is one where disrespect, blame, or bullying feels normal.

This is more common than you might think. In the American Psychological Association 2023 Work in America survey, run by The Harris Poll, 19% of U.S. workers called their workplace very or somewhat toxic. More than one in five said they had faced harassment in the past year, and 15% said they had faced discrimination (APA, 2023).

The same survey found that over half of workers in toxic workplaces said work had harmed their mental health.

Try this: Set limits on how much time you spend with negative people. If you face harassment or discrimination, write down what happened and report it to human resources (HR). See how to deal with a toxic coworker.

7. Job Insecurity

Worrying about losing your job is one of the biggest stressors there is. News of cuts, restructuring, or a slow economy can create a constant fear of layoffs.

In the APA’s 2025 survey, 54% of U.S. workers said job insecurity had a big effect on their stress at work (APA, 2025).

Try this: Focus on what you can control, like updating your resume and building your network. Read more in layoff anxiety: staying calm when your job feels unsafe.

8. Constant Interruptions and Being “Always On”

Pings. Pop-ups. “Quick question?” Constant interruptions make it almost impossible to focus.

Microsoft studied this in its 2025 Work Trend Index report. It found that the average worker gets 117 emails and 153 Microsoft Teams messages a day. That works out to an interruption about every two minutes. Many workers also get dozens of after-hours messages (TechRadar, 2025).

Tools like Slack, Zoom, Outlook, and Teams make work easier in many ways. But they also make it feel like you are always on. Email overload and too many meetings leave little time for real work.

Try this: Turn off non-urgent notifications. Check messages at set times, like once an hour. See our tips on managing email overload.

9. Lack of Support and Recognition

Everyone needs help sometimes. When you don’t get it, stress builds.

A lack of support might mean no training, no backup, or no one to ask. A lack of recognition means your hard work goes unnoticed. Over time, feeling undervalued wears down your motivation and job satisfaction.

Try this: Don’t wait to be rescued. Ask for help with one specific task. Share your wins with your manager in a short weekly update so your work gets seen.

10. Change at Work

New leaders. New systems. New AI tools. Organizational change can be exciting, but it is also stressful. New technology often means learning while still keeping up with your normal work.

Change brings uncertainty, and your brain does not like uncertainty.

Try this: Ask questions early. Find out what is changing, why, and what it means for you. Clear answers shrink the unknowns.

11. Work-Life Conflict

When work spills into your home life, stress follows you everywhere. Work-life conflict happens when job demands crowd out family, rest, and fun.

Remote work and hybrid work can blur this line even more. Your kitchen becomes your office. It is hard to know when the day ends. Even the commute can add stress for hybrid workers.

Microsoft’s research found that many people start checking email early in the morning, and some check again on Sunday evening (TechRadar, 2025). No wonder so many of us dread Monday.

Try this: Set boundaries around your time. Pick a hard stop time and keep it, even on Friday when you want to “just finish one more thing.” Read how to set boundaries at work and our realistic guide to work-life balance.

12. Your Work Environment and Career Worries

Sometimes the stress comes from your surroundings. A noisy office, an open office with no privacy, or an uncomfortable workspace can wear you down without you noticing.

Other stressors are about your future:

• Low pay and financial stress
• No room to grow or lack of career growth
• Boredom from monotonous tasks

Some jobs bring their own special stressors. Nurses and others in shift work deal with odd hours and tough cases. Teachers face big classes and high pressure. Retail workers handle customer complaints all day. People who serve clients or customers often deal with rude or angry people. Office workers face screens and meetings for hours. Jobs that require you to stay cheerful no matter how you feel involve emotional labor, which is tiring in its own way.

Try this: Fix what you can in your space, like using headphones or asking for a better chair. For bigger career worries, talk with your manager about a growth plan.

Inner Pressures Count Too

Not all stress comes from outside. Some of it comes from inside your own head.

Perfectionism makes every task feel like it must be flawless. Imposter syndrome makes you feel like a fraud who is about to be found out. High expectations of yourself, without rest, can be just as stressful as a demanding boss.

If this sounds like you, read imposter syndrome at work and how to stop overthinking at work.

How These Triggers Affect You

When stress triggers pile up, they show up in your body and mood. Common symptoms of stress include:

• Headaches
• Fatigue
• Trouble sleeping
• Irritability and frustration
• Feeling overwhelmed
• Anxiety at work

The Mayo Clinic notes that stress can affect your body, your feelings, and your behavior all at once (Mayo Clinic). Over time, it can hurt your physical health, your mental health, and your productivity.

The World Health Organization even lists burnout in the ICD-11 as the result of chronic workplace stress that has not been managed well (World Health Organization, 2019).

Learn to spot the signs of stress at work in signs of work stress you shouldn’t ignore.

How to Find Your Biggest Stressors

Here is a simple way to figure out what is really stressing you out.

Keep a Stress Journal for One Week

A stress journal is just a quick daily note. Each time you feel stressed, write down:

• What happened
• Who was involved
• How you felt (on a scale of 1 to 10)
• How you reacted

After a week, look for patterns. You may find that most of your stress comes from one or two sources.

Sort Your Stressors

Put each stressor into one of two groups:

1. Things I can change. Your schedule, how you respond to email, whether you say no to extra tasks.
2. Things I can’t change. Company decisions, the economy, your boss’s personality.

Spend your energy on group one. For group two, focus on how you respond.

Simple Ways to Reduce Stress at Work

Once you know your triggers, you can start to reduce stress. Here are some coping strategies that work for many of them:

• Practice good time management. Plan your top three tasks each day.
• Talk to your manager. Many bosses don’t know you are overloaded until you tell them.
• Take short breaks. Even two minutes away from your desk helps.
• Breathe. Slow breathing helps calm your nervous system. Try box breathing.
• Lean on others. Friends and coworkers can help you feel less alone.

Workplaces can help too. The U.S. Surgeon General, Dr. Vivek Murthy, has called on employers to protect workers from harm and support well-being at work (U.S. Surgeon General, 2022). Leaders who build psychological safety, where people can speak up without fear, help lower stress for everyone.

For more ideas on how to stay calm at work, read our complete guide to workplace stress.

When to Get Help

If stress is hurting your sleep, your health, or your relationships, it is time to get support.

Check if your company has an Employee Assistance Program (EAP). It often offers free, private counseling. You can also talk to your doctor or a therapist. Cognitive behavioral therapy (CBT) is a proven way to manage stress and anxiety.

If you are in crisis anywhere in the United States, call or text 988 for free support, any time.

The Bottom Line

The most common causes of stress at work are a heavy workload, tight deadlines, lack of control, unclear roles, difficult people, and job insecurity. Constant interruptions, poor work-life balance, and worries about your future add to the pile.

You can’t remove every stressor. But you can name them, sort them, and take small steps to handle them better. Start by noticing your top three triggers this week. That one step can make a real difference.

Frequently Asked Questions

What is the number one cause of stress at work? A heavy workload is one of the most common causes. Too much work with too little time keeps your stress response running all day.

What are the 6 main causes of work-related stress? The U.K. Health and Safety Executive lists six areas: demands, control, support, relationships, role, and change. Most workplace stressors fit into one of these.

Can a bad boss cause stress? Yes. A boss who micromanages, gives unclear goals, or treats people poorly is a major source of stress for many workers.

How do I know what is stressing me at work? Keep a simple stress journal for a week. Note what happened, who was involved, and how you felt. Patterns will start to show.

Is it normal to feel stressed at work every day? It is common, but it is not something you should ignore. Daily stress over a long time can lead to health problems and burnout. Try to find the cause and get support.

Sources

1. American Psychological Association. (2023, July 13). APA poll reveals toxic workplaces, other significant workplace mental health challenges (2023 Work in America survey). https://www.apa.org/news/press/releases/2023/07/work-mental-health-challenges
2. American Psychological Association. (2025, May 21). More than half of U.S. workers say job insecurity causing stress (2025 Work in America survey). https://www.apa.org/news/press/releases/2025/05/job-insecurity-causing-stress
3. Gallup. (2026). State of the Global Workplace: 2026 Report, Global Data. https://www.gallup.com/workplace/697904/state-of-the-global-workplace-global-data.aspx
4. Health and Safety Executive Northern Ireland. Step 1: Identify the risk factors (Management Standards). https://www.hseni.gov.uk/step-1-identify-risk-factors
5. Mayo Clinic Staff. Stress symptoms: Effects on your body and behavior. Mayo Clinic. https://www.mayoclinic.org/healthy-lifestyle/stress-management/in-depth/stress-symptoms/art-20050987
6. National Institute for Occupational Safety and Health. (1999). Stress… at Work (DHHS NIOSH Publication No. 99-101). https://www.cdc.gov/niosh/docs/99-101/
7. TechRadar. (2025). Microsoft study finds what’s stopping us from being productive at work is… work (reporting on the Microsoft 2025 Work Trend Index special report). https://www.techradar.com/pro/microsoft-study-finds-whats-stopping-us-from-being-productive-at-work-is-work
8. Office of the U.S. Surgeon General. (2022). The U.S. Surgeon General’s Framework for Mental Health and Well-Being in the Workplace. https://hiv.gov/blog/u-s-surgeon-general-releases-new-framework-mental-health-well-being-workplace
9. World Health Organization. (2019, May 28). Burn-out an “occupational phenomenon”: International Classification of Diseases. https://www.who.int/news-room/detail/28-05-2019-burn-out-an-occupational-phenomenon-international-classification-of-diseases