What Does "All in Your Head" Mean?

A. Leverkuhn

The English phrase “all in your head” refers to someone having thoughts that are disconnected from reality, or that an idea can exist only within that person’s head, without being manifested the physical world. This phrase is used quite a bit in the English language for anything that may be only in someone’s mind, or imagined. It’s one of many “body idioms” that relate abstract ideas to the physical parts of the body.

A hypochondriac is a person who believes he has a disease, however it's all in his head.
A hypochondriac is a person who believes he has a disease, however it's all in his head.

One common use of this phrase is the idea of hypochondria, where a person may feel ill or think that he has a medical condition. If he does not have the medical condition, his fear is said to be “all in [his] head.” This is a more physical use of the idiom, where the idea of illness is all in the head, i.e. the brain, rather than being actually physically present in the body.

Some individuals may have "voices" within their head that dictate personal choices, but these voices may be "all in a person's head".
Some individuals may have "voices" within their head that dictate personal choices, but these voices may be "all in a person's head".

Another use of the term “all in your head” is related to interpersonal relationships. People can be hard to read, and some people in particular find it hard to figure out the emotions of others. For example, someone might say “I thought that she didn’t like me, but in the end it was all in my head.” Here, it is the idea of a conflicting relationship that was only imagined in the speaker’s mind, and not the reality. Commonly, after the two individuals share more of their feelings with each other through conversation, it becomes evident whether a pre-existing idea was real or not.

Over time, the phrase “all in your head” has become a stock phrase for songs and other performance narrative. English speakers use it a lot in many different scenarios to describe fear, concerns, and thoughts on hypothetical outcomes or phenomena. Although this phrase is often highly idiomatic, it has also been linked to a more concrete idea in mass psychology.

Some individuals seem to have more distinct “voices” within their heads, or internal voices, that dictate their self-image or emotional state. Here, these voices could be said to be within the person’s head, and though they may not be related to anything in the external world, the professionals who treat certain psychological conditions agree that these internal voices can be quite powerful indeed. When therapists seek to dispel the power of these internal thoughts, they may console a patient, saying “it’s all in your head.”

Misinterpreting body language can cause someone to form beliefs that aren't true.
Misinterpreting body language can cause someone to form beliefs that aren't true.

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Discussion Comments


No doubt, it is our subconscious mind playing tricks on us. We should only use it for storing info. Our conscious mind is reality.


All in your head is exactly that: thoughts are just thoughts, not reality, but our minds are so powerful that we make these thoughts our reality. It is very difficult to control when you have a life long habit of "thinking" rather than "doing."


@everetra - In personal relationships we tend to imagine the worst about people unfortunately. One of the things that fuels these misunderstandings is a lack of communication.

When two people don’t communicate it’s hard to know what they are thinking. The mind has a habit of manufacturing worst case scenarios, all out of pure cloth.

Sometimes it’s embarrassing and somewhat laughable what we think other people really think of us. I think it’s important to keep the lines of communication open at all times.


Is anxiety all in your head? I think it probably is. But the question is, is it chemically induced or the result of fears gone haywire?

I have a friend who had an anxiety disorder which affected everything he did. He could never hold down a job. He hopped from one relationship to the next. He always had this acute paranoia and believed that coworkers were talking behind his back, when I could never validate anything he said as being true.

He finally checked in with a psychiatrist and they told him he had a chemical imbalance. They put him on some drugs and years later, he seems to be doing fine.

But I have always wondered whether they really treated the real problem or just drugged him up to cover it. That’s the problem with psychiatric drugs. You always wonder what they’re really doing.


People who hallucinate because of a medical condition must hear this phrase from their friends, family and doctors all the time. I can't even imagine how difficult it must be for them to understand that something which they see and believe does not exist in reality.

Sometimes I wake up from a dream and it feels like the dream actually took place. Hallucinating must be something like this, except that you never wake up.

Do you think that "all in your head" is a neutral comment, or it has a negative connotation?

I think it's neutral, but I can also see how some people might take it as an insult. Of course unless they were saying "it's not all in your head" to confirm that they are right.


I understand when the phrase "it is all in your head" is used when talking about a medical condition or a health condition. But I dislike hearing it in interpersonal relationships if it's used to cover up lies or to prove yourself right when you are not.

My boyfriend used to say this phrase to me whenever I talked about a girl friend of his. I felt that she liked him and could see all the signs. But whenever I mentioned this to my boyfriend, he would ignore it by saying that it's all in my head.

It made me feel like I was being overly jealous or possessive. Some time later, she confessed her love to him and my intuition about her feelings was correct. All this time, I had blamed myself for being worried about this. So I wish people wouldn't use this phrase to cover up things or put the blame on the other person.

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