A recent study revealed that hair-pulling disorder may not only be linked to stress and negative emotions, but other factors such as boredom and low levels of stimulation may also play a role in driving sufferers to this behavior.
Trichotillomania, or hair-pulling disorder, is a repetitive behavior that compels a person to pull out hair from their scalp, eyebrows, eyelashes, or other parts of their body. This disorder can lead to hair loss and may cause psychological and social problems that significantly impact the individual's life. It often co-occurs with other mental health conditions, such as anxiety, depression, post-traumatic stress disorder (PTSD), obsessive-compulsive disorder (OCD), and attention deficit hyperactivity disorder (ADHD).
Researchers have long theorized that hair pulling is a way for sufferers to cope with uncomfortable feelings, such as anxiety, stress, and frustration, and that the relief after pulling encourages the repetition of the behavior.
However, previous studies have yielded mixed results regarding this interpretation, especially since hair pulling can also occur when a person is preoccupied with something else or distracted and not fully paying attention to what they are doing.
To better understand the relationship between emotions, the urge to pull hair, and the actual behavior, researchers at Heidelberg University Hospital followed 61 adults with trichotillomania for 10 days.
The researchers used a technique known as "environmental real-time assessment," which relies on recording feelings and behaviors as they occur, rather than asking participants to remember how they felt at the end of the day.
During the study period, participants received seven alerts daily between 8 a.m. and 10 p.m., each time asking them to rate their emotional state, the intensity of their urge to pull their hair, and whether they had pulled it since the previous assessment. They could also record any pulling episodes as soon as they occurred.
The researchers collected 2,557 real-time assessments and 702 episodes of hair pulling for analysis.
The results showed that the intensity of the urge to pull out hair was a better predictor of the behavior than the emotional state itself. The stronger the urge, the higher the likelihood that the person would pull out their hair at that moment, and the higher the likelihood of hair pulling occurring in a subsequent assessment.
The reseachers also found that a previous episode of hair-pulling increases the likelihood of recurrence, suggesting that the behavior may persist and be reinforced throughout the day.
Emotions, however, had a less direct impact. Anxiety, anger, sadness, guilt, and stress were all associated with an increased urge to pull out hair, as were rumination, fatigue, and boredom. Conversely, positive emotions were associated with a decreased urge to pull out hair.
But boredom was the most prominent factor among these cases.
The researchers found that boredom predicted hair pulling, both during the assessment itself and later. Fatigue was associated with an increased urge to pull hair, but it was not a predictor of the behavior actually occurring.
The results suggest that hair pulling may not always be an attempt to relieve psychological distress, but may also occur when the level of stimulation is low, as in cases of boredom.
Researchers suggest that certain repetitive behaviors may help individuals regulate their internal motivation levels. From this perspective, hair pulling may become more likely when a person is bored or experiencing low levels of activity and motivation.
The researchers wrote that the apparent role of boredom and fatigue suggests that explaining trichotillomania through a disorder of emotional regulation alone may not be sufficient.
These findings do not mean that negative emotions are unrelated to the disorder. These emotions may be part of the experience of the urge to pull hair, even if they are not the direct cause of the behavior. The researchers also point out that trichotillomania may not manifest in the same way in all sufferers, and there may be different patterns of the disorder.
The researchers believe the findings may help develop a more accurate understanding of trichotillomania by focusing not only on the emotions that precede the behavior, but also on what happens between the onset of the urge and the act of pulling, including boredom, level of stimulation, sensory experiences,
