Assumptions – Why They Are Wrecking Your Mood and How To Stop Making Them

By: JD Hancock
When you make an assumption, you tell yourself that something is true without actually having any evidence that it is.
It’s all too easy to lead your life never questioning that you are assuming things to be facts.
Examples of assumptions at work are:
- You don’t get the promotion at work, so you assume you aren’t good at your job
- You assume most people are bad at heart, so don’t trust anyone you meet
- Your partner isn’t very talkative of late, so you assume they are angry with you
- You assume big cities are dangerous so decline a great job offer in a city
- Your mother has never understood your choices, so you assume she does not love you
- A friend with two tickets to a musical asks someone else, so you assume the friendship is faltering
Sound familiar?
Why do we make assumptions?
In some ways the brain is designed to make assumptions. It searches for patterns, or what cognitive scientists call ‘mental models’, to make it a more efficient machine. For example, you can walk to the station and take the train to the office without paying attention, but assuming it will be the same walk and platform as ever, leaving your mind free to efficiently organise tomorrow’s dinner.
But many assumptions are actually learned behaviour. They come from our culture and our families, and from what we were taught to think as a child. We tend to take on our parents’ assumptions, such as assuming that we do or don’t deserve certain things (a good life, money, love) or we should or shouldn’t do other things (get married, be atheist, wear bright clothes).
Even if we grow up and learn to question the ways our parents think, we might still unwittingly be making assumptions like them because we approach relationships with others using patterning we were taught as a child. For example, you might assume a good relationship means two people must always agree with each other – but does it? And how much would this colour and control your choices of partner if this was your assumption?
Why assumptions can really bring your moods down
Assumptions damage our capacity to relate to others. If you are always assuming you know how others think and feel, you stop listening and communicatingand leave them feeling trapped or misunderstood. And relationship difficulties, whether at work or home, can lead to low self-esteem and depression.
Assumptions also block possibilities. They impede your ability to think creatively and get ahead. If you assume the only way to do a presentation is with a powerpoint and the day comes but there is a technological meltdown at the office and you back out, it’s the employee who makes no assumptions and thinks to act out scenarios the powerpoints describe with the clients and has them all laughing that not only will win the promotion you wanted.
But most importantly when it comes to your moods, assumptions also create spirals of negative thinking.
Assumptions tend to involve such forms of negative thought as doubts and black and white thinking. And given that, as cognitive behavioural therapists teach, our thoughts create our feelings create our actions, if your head is full of negative assumptions it’s highly more likely that you are triggering yourself into repeat cycles of feeling awful.
How to Stop Making Assumptions

By: brett jordan
1. First things first – learn how to recognise you are making them.
Spend a week really watching for when you are assuming things, even writing them down. The act of writing can often lead to additional clarity, where you might see the other assumptions surrounding the one you’ve recognised.
Look for assumptions of all shapes and sizes. Something small like ‘my spouse didn’t do the dishes just to annoy me’ is just as much a possibly damaging assumption as something big like ‘my partner doesn’t really love me anymore’.
2. Ask good questions of your assumptions.
To break down assumptions you need to ask good, forward moving questions. Try to avoid ‘why’ questions and go for ‘what’ and ‘how’ questions (for more on this, read our article on Asking Good Questions).
Try the following questions:
- What facts do I have to prove this thought is true?
- What facts do I have to prove this thought isn’t true?
- What is a more realistic, in the middle way of seeing this?
- Is this really my own opinion, or did someone else teach it me and I didn’t question it?
- Is this even really what I think or want to think in the future?
- What would life be like if the opposite of this assumption were true?
- What if this assumption didn’t exist at all in my life – who would I then be?
3. Agree to not have control of everything.
A lot of assumptions are about wanting to control life out of a false idea this will make you ‘safe’ (which of course is based around an assumption and core belief that the world isn’t safe in the first place!). For example, because you can’t control what others think, and this might feel scary, you assume that you know what they think. You assume that the neighbours find you lazy, and assume that your teenage daughter hates you.
But what if instead you embraced uncertainty? It’s in fact a great method to drop a ton of assumptions all at once.
Do it by trying this powerful question – what if I don’t need to know the answer about this person/situation? How much stress could I relieve myself of by just agreeing, in this moment, to not know what I can’t know?
4. Look for places you feel stuck.
If you aren’t sure where you are making assumptions, (or are assuming you are too smart to make them!), then look at places you feel stuck. Inevitably there will be an assumption hiding out and holding things up.
For example, if you find it really hard to make friendships that last, what are you assuming about the sorts of people you like? What are you assuming about the kinds of places you want to meet these friends? And what are you assuming friendship involves in the first place?
5. Become mindful.
Assumptions can be tricky, because they are thoughts we are so used to making they can go by without us even noticing. Mindfulness, the act of continuously drawing your attention to the present and how you are thinking and feeling right now, can over time train you to catch more of your thoughts, and thus your assumptions.
The more you know what you are assuming, the more power you have to change what you are assuming into perspectives that open, rather than close, possibilities for you and your life.
Have you changed an assumption and seen real results? Share below, we love hearing from you.

I am doing a project in my community about assumptions. Specifically, what assumptions we hold about each other and how they affect how we see each other as individuals and how we see ourselves as a community. I found your article helpful; it is clear, easy to read, and thought provoking. I especially liked the part about how assumptions block possibilities, as I consider this is to be particularly impactful at the level of community. We could accomplish so much if we could drop our assumptions and be clear about who we are and what we want moving forward! Thank you for taking the time to share your ideas on this topic.
Thank you Anne! We are grateful to hear that it was useful. Assumptions are so powerful, if we all learned at school to more thoroughly question what we held as ‘facts’ the world would surely be a different place. Good luck with the project!
This is great! I always thought assumptions give a sort of false sense of power (“I definitely know what’s going on here…”) where the true power lies in admitting uncertainty – heck, that’s the beauty of the entire scientific method!
Well said, Tara!
Thank you for the above article, I agree with the entire article. I am a 39 y/o male who just started summer school at the community college. I of course for years assumed that I can not go back to school at 40 and succeed among youngsters, after my 3rd class today and reading your article, I realized my thesis….. ” TO ASSUME, OR NOT TO ASSUME,…THAT IS THE QUESTION “
Great thesis! You most definitely can go back to school at any time. Many people go far later…. enjoy the experience!
I have been struggling for years with my relationship with my DIL. I make assumptions all the time about how she thinks and why she does things. I do not want to assume this but I suspect it has been a key contributor to the breakdown of my relationships. I going to make this my goal to change my way of thinking.
Hi Carol, we are glad the article seems to have helped.
Thank you for this article, it helped me to recognize and embrace this pattern that makes my life sometimes really difficult.
Great to hear it was helpful!
Yeah slot of my times I don’t put the hands
Into myself withen God and me doing stuff please help and friends soul mindful around…
Hi Delyolon, unfortunately the translation to English doesn’t make sense to us so we are not sure what you are asking? Did you want to try posting again by explaining it differently?
If i stop assuming situations would it also help in overthinking. I love this girl and she loves me too. But at times i assume and overthink situations way too much. It leads to anxiety and stress/depression/negative thoughts.
What should i do to change my thinking behaviour.
Hi Ammar, yes, assumptions can lead to spirals of negative thoughts. It’s not something you can change in a day – negative thinking has an addictive quality. Changing thoughts is a long committed road and can take time. We’d suggest a round of cognitive behavioural therapy (CBT) which focuses exclusively on helping you recognise and gain control of your thinking.
Thank you for this information
I’m currently battling with assumption and it’s affecting my relationship negatively.
I hope to put some of this into practice, I can’t afford to lose my girlfriend, she means the world to me
Hi Kehinde, we hope YOU mean the world to you, too. When we put others as the source of our happiness then we by default begin to overanalyse what they think and feel about us. Shift the focus on to what YOU think and feel about you. Source your joy and esteem from yourself, not others, and they will then be more at ease with you. Best, HT.