Most people have experienced waking up from a strange or unsettling dream and brushing it off the next morning.
Dreams can feel random, confusing or even absurd, which is why many people rarely think about them again after they wake up.
But researchers studying sleep believe that what happens in our dreams could sometimes reflect what is going on inside our bodies.
In some cases, unusual dream patterns may even appear before physical symptoms of illness.
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When the brain checks the body
During sleep, the brain continues to process signals from different parts of the body. These signals help maintain balance in vital systems such as stress response, immunity and temperature regulation.
Sleep researchers say this monitoring becomes especially active during REM sleep, the stage when vivid dreaming typically occurs.
During this phase, the brain processes and combines information about the body’s internal state.
According to sleep researcher Patrick McNamara from Boston University School of Medicine, the brain effectively reviews internal signals during sleep and turns them into dream imagery.
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The theory of “prodromal dreams”
Scientists sometimes describe these dreams as prodromal dreams. The term refers to early signs that appear before the full symptoms of an illness become noticeable.
Some researchers believe that when the body detects early changes, the brain may translate those signals into symbolic dream scenarios.
This does not only apply to serious illnesses. In theory, even mild infections such as a cold or flu could trigger changes in dream patterns.
Patterns researchers have noticed
Studies suggest certain dream themes may appear more often when the brain is responding to internal stress signals.
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Researchers have observed recurring patterns such as:
- Dreams involving sudden aggression or hostility from others
- Encounters with unfamiliar or threatening strangers
- Situations where the dreamer feels under attack or unsafe
Scientists emphasise that dreams alone cannot diagnose disease. However, unusual or recurring nightmares may sometimes reflect underlying stress or physical changes the body is experiencing.
Sources: Unilad and Daily Mail
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This article is made and published by Mie Hermansen, who may have used AI in the preparation.