Do you feel nervous, tired, or sad on Monday mornings — even if nothing is really wrong?
You’re not alone. Millions of people feel this way every week. And while most of us think it’s because of going back to work or school, new research shows that Monday stress isn’t just about work — it’s about your body and brain.

Let’s break it down in simple terms.
What the New Study Found
In June 2025, scientists from the University of Chicago studied over 50,000 people around the world. They tracked their sleep, stress levels, heart rates, and mood — every day for six months.
The result?
People feel the most anxiety on Mondays, no matter if they work, study, or stay at home. Even retired people and students who don’t have regular jobs felt it too.
What Happens Inside Your Body
1. Your sleep schedule is off
Most people sleep later on weekends. That confuses your body clock. Monday morning feels like waking up in the wrong time zone.
2. More stress hormones
Your body makes more cortisol (the “stress hormone”) on Monday. It’s like your brain is on high alert — even if there’s no danger.
3. Your gut feels the weekend too
Too much food or alcohol over the weekend changes your gut bacteria — and that affects your mood and energy on Monday.
4. Your brain is scanning the week
You might not notice it, but your brain is already thinking about tasks, meetings, and responsibilities. This future-thinking causes low-level stress.
How Monday Anxiety Affects Your Body
- Fast heartbeats and higher blood pressure
- Muscle tightness, especially in shoulders and neck
- Headaches or foggy thinking
- Stomach problems or poor digestion
- Poor sleep on Sunday night
- Feeling low energy or extra tired
Over time, this adds up. People with high Monday stress are more likely to feel burned out or develop health problems.
So, It’s Not About Work?
Right. Even people who don’t work feel Monday anxiety.
That’s because Monday has become a symbol of starting over — a time to be productive, responsible, and organized. Your brain reacts to that, whether you realize it or not.

What You Can Do to Feel Better
1. Keep your sleep routine
Try to go to bed and wake up around the same time every day — even on weekends.
2. Don’t schedule big things Monday morning
If possible, do your hardest tasks later in the day or on Tuesday.
3. Create a happy Monday habit
Have a special coffee, walk, or playlist. Make Monday something to look forward to.
4. Eat a good breakfast
Oats, fruit, yogurt, and foods with fiber help your body feel calm and balanced.
5. Try deep breathing
Breathe in for 4 seconds, hold for 4, breathe out for 4, and pause for 4. Repeat a few times.
Quick Facts from the Study
- 79% of people feel anxiety on Mondays
- 66% say it’s not because of work
- 42% feel physical stress (like tension or headaches)
- 58% sleep worse on Sunday nights
- 25% use coffee or energy drinks to get through it
Monday anxiety is real — and it’s not just in your head. Your body is reacting to change, stress, and habits from the weekend.
But once you understand what’s going on, you can make small changes to feel better.
You don’t have to hate Mondays. You just need to treat them with a little more care.
Take a deep breath. Be kind to yourself. And start your week your way. 💙