7 psychological traits of people who get anxious and jittery when they drink coffee

Isabella Chase by Isabella Chase | April 23, 2025, 2:00 am

There’s a funny thing about coffee. For some, it’s the key to kicking off their day with energy and focus.

But for others, it sends them spiraling into anxiety and jitters.

It all boils down to a person’s unique psychological makeup. Drinking coffee doesn’t uniformly affect everyone.

Some people can gulp down four cups a day and feel as steady as a rock, while others get jittery just smelling the stuff.

It’s a revealing exploration that might just help you understand why that second espresso has you climbing the walls.

If you’re someone whose pulse races with every sip of coffee, or if you’re simply curious about this fascinating mind-body connection, keep reading.

Let’s delve into the intriguing world of coffee and anxiety.

1) Sensitivity to stimulants

It’s a well-known fact that coffee is a stimulant. For many, it’s the jolt of energy that propels them out of bed in the morning.

But for some, that same stimulant can trigger a flurry of anxiety and nervousness.

This is often due to a heightened sensitivity to caffeine, which is not uncommon.

In fact, it’s a trait linked to our genetic makeup. Some people are simply more sensitive to stimulants than others.

If you find yourself getting jittery after just a sip or two of coffee, it could be because your body metabolizes caffeine differently than others.

Your system might process it more slowly, leading to an increased heart rate, restlessness, and feelings of anxiety.

Understanding this sensitivity can be the first step towards managing it.

It doesn’t necessarily mean you have to give up coffee entirely – but perhaps consider switching to a lower-caffeine blend or limiting your consumption.

It’s about knowing your own body and how it reacts.

After all, the goal is to enjoy your cup of joe without feeling like you’re on a rollercoaster.

2) Overthinking tendencies

I’ve often found myself lying awake at night with thoughts racing through my mind, unable to switch off and relax.

It took me a while to realize that my late-night coffee habit was partly to blame.

You see, I’m a bit of an overthinker. I tend to analyze everything, dwell on possibilities, and often struggle with decision-making.

Psychologists say this is a trait common among those who experience anxiety.

Now, combine overthinking with caffeine. Coffee stimulates the central nervous system and can enhance mental alertness.

This might sound great, but for an overthinker like me, it can turn into a mental marathon of thoughts and worst-case scenarios.

I found that cutting down on coffee, especially in the evenings, helped quieten my mind.

It allowed me to wind down at the end of the day instead of getting caught up in a whirlwind of thoughts.

It’s all about balance.

There’s no need to completely cut out coffee – it’s about understanding your traits and making small adjustments for your wellbeing.

3) High levels of neuroticism

Neuroticism is a psychological trait characterized by emotional instability, anxiety, moodiness, and a predisposition to stress.

It’s one of the ‘Big Five’ personality traits widely accepted in psychology, along with extraversion, agreeableness, conscientiousness and openness.

Those with high levels of neuroticism often experience a heightened response to stress and can be more susceptible to feelings of worry and fear.

Now, throw in a cup of strong coffee into this mix.

The caffeine can amplify these feelings, making the individual feel even more anxious and jittery.

Research shows that those with high neuroticism are also more likely to consume caffeine, possibly as a way to manage their mood or energy levels.

However, it can sometimes have the opposite effect – increasing feelings of anxiety and nervousness instead.

Being aware of your levels of neuroticism can help you manage your coffee intake better.

It’s about knowing your emotional responses and how certain substances like caffeine can affect them.

4) Introverted personality

Introverts, by nature, tend to be more sensitive to their surroundings and stimuli.

They thrive in calm and quiet environments and often get overwhelmed by too much activity or noise.

Now, picture this: An introvert sips a cup of strong coffee.

The caffeine kickstarts their system, possibly making them feel more alert and sensitive.

This heightened sensitivity can sometimes lead to feelings of restlessness and anxiety.

It’s important to remember that being an introvert isn’t necessarily a bad thing.

In fact, introverts often have unique strengths such as keen observation skills and deep thinking.

Understanding how stimulants like coffee can affect you can help manage any unwanted side effects.

If you’re an introvert who loves coffee but hates the jitters it brings, consider adjusting your intake.

Perhaps a lower caffeine blend or decaf could be the way to go. It’s all about finding what works best for you!

5) History of anxiety disorders

I’ve battled with anxiety for as long as I can remember.

It’s like a constant hum in the background, sometimes louder, sometimes softer, but always present.

For years, I didn’t realise that my love for coffee was actually fueling this anxiety.

You see, those with a history of anxiety disorders are often more susceptible to the stimulating effects of caffeine.

It can exacerbate existing symptoms, making you feel more jittery, nervous, or on edge.

For me, it was a tough realization. Coffee was my morning ritual, my comfort in a mug.

But once I understood the connection, I knew I had to make changes.

I gradually cut down on my consumption and switched to decaf.

It didn’t happen overnight, and it wasn’t easy, but it was necessary for managing my anxiety levels.

It’s crucial to understand how your body responds to caffeine, especially if you’re dealing with anxiety disorders.

Small changes can often lead to significant improvements in your mental health.

6) Stress-prone individuals

Being prone to stress is a trait many of us are all too familiar with.

In our fast-paced world, stress has become a constant companion for many.

Now, imagine adding a stimulant like coffee into the mix.

Caffeine can cause our body to produce more cortisol, the hormone released in response to stress.

For those who are already prone to stress, this can lead to an overstimulated state, causing feelings of anxiety and restlessness.

It’s like adding fuel to the fire. The caffeine in coffee can trigger a stress response, making you feel even more on edge.

And if you’re already feeling stressed out, these effects can be amplified.

Understanding this connection can help manage your caffeine intake better.

It’s not about completely giving up on coffee but finding a balance that suits your stress levels.

Perhaps try swapping out that afternoon cup of coffee for a herbal tea or even just a glass of water.

It’s all about finding what works best for your body and mind!

7) High-strung personalities

High-strung individuals are often described as reactive, intense, or overly sensitive.

They tend to react strongly to situations and can sometimes struggle to relax or unwind.

Caffeine can heighten these characteristics. It’s a stimulant that triggers your fight or flight response, increasing alertness and energy levels.

For someone who’s already high-strung, this can lead to feelings of anxiety and unease.

If you identify with being high-strung, it’s essential to understand how caffeine can impact you.

It might be worth exploring other ways to kickstart your day or pick you up in the afternoon.

Whether it’s a brisk walk, a glass of water, or a caffeine-free herbal tea – there are many alternatives that could help you feel energized without the jittery side effects.

Final thoughts: It’s all about balance

The human body and mind are fascinatingly complex entities. Our reactions to external stimuli like caffeine are a testament to this complexity.

For some, coffee is that necessary jolt of energy that shakes off the morning fog.

For others, it’s a source of anxiety and jitteriness.

These reactions can be deeply rooted in our psychological traits, from our sensitivity to stimulants to our tendency to overthink.

Understanding these connections between our psychological makeup and our response to caffeine is the first step towards finding balance.

It’s about knowing oneself, recognizing the signs of anxiety or jitteriness, and making adjustments where necessary.

Whether it’s switching to a milder blend, reducing your coffee intake, or exploring alternatives like herbal teas or physical activity for a natural energy boost – it’s about finding what works for you.

It’s not about demonizing coffee or completely cutting it out of your life (unless medically advised).

It’s about enjoying your brew in a way that adds to your life rather than causing distress.

After all, life is all about balance – and so is enjoying a good cup of coffee.