Psoriasis is usually thought of as a skin disease, but its effects often go far beyond the skin.
A new study suggests that as psoriasis becomes more active, people may have greater difficulty falling asleep and may feel more tired during the day, even if their overall sleep quality does not seem much worse. The findings were published in the Journal of Clinical Medicine.
Psoriasis develops when the body’s immune system becomes overactive and speeds up the growth of skin cells. Instead of taking weeks to replace themselves, skin cells build up within days, creating thick, red, scaly patches. The condition may also cause itching, burning, pain, and emotional stress, all of which can interfere with everyday life.
Healthy sleep is essential for both physical and mental health. Not getting enough restful sleep can affect memory, mood, work performance, and the body’s ability to recover from illness. Researchers have long suspected that psoriasis and poor sleep may influence each other because inflammation can affect both conditions.
To explore this connection, researchers from the University of Rome Campus Biomedico School of Medicine examined 136 people with psoriasis. They measured disease severity using the Psoriasis Area and Severity Index and evaluated sleep using the widely used Pittsburgh Sleep Quality Index.
Most participants had mild psoriasis. When researchers compared people with severe psoriasis to those with milder disease, they found that the severe group needed more time to fall asleep and reported greater daytime difficulties caused by poor sleep. However, there was no significant difference in the overall sleep quality score between the groups.
The researchers also performed statistical analyses to account for other factors that could affect sleep. Even after these adjustments, severe psoriasis remained independently linked with longer sleep latency and more daytime dysfunction.
These findings suggest that doctors should pay attention to individual sleep problems instead of focusing only on an overall sleep score. Someone with psoriasis may appear to have acceptable overall sleep quality while still struggling to fall asleep or stay alert during the day.
Looking at the study as a whole, it provides useful evidence that psoriasis management should include questions about sleep. The research cannot prove that severe psoriasis directly causes these sleep problems, and the number of participants was fairly small.
Future studies involving larger groups and longer follow-up will help confirm the findings. Nevertheless, the results support a more patient-centered approach in which treating psoriasis also includes improving sleep, daily functioning, and overall quality of life.
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Source: University of Rome Campus Biomedico School of Medicine.
