Addressing chronic insomnia may help protect the brain from future aging, according to new research published in Neurology.
The American Academy of Sleep Medicine reports that around 12% of Americans suffer from chronic insomnia. Unlike genetic or other uncontrollable health factors, insomnia can often be managed through treatment.
Dr. Diego Carvalho, a sleep specialist at Mayo Clinic, said the study shows that chronic insomnia may be a modifiable risk factor for cognitive decline. Researchers studied 2,750 people over five years using neurological assessments, brain scans, and sleep evaluations.
The findings revealed that insomnia was linked to a 40% higher risk of cognitive impairment. However, people who improved their sleep or used medication did not face the same decline.
Experts explained that insomnia is more than difficulty falling asleep. It can include poor sleep quality, difficulty staying asleep, and daytime fatigue. These issues can harm brain health by increasing inflammation and disrupting memory consolidation.
According to researchers, poor sleep may also allow toxic proteins to build up in the brain. Such buildup is associated with Alzheimer’s disease.
Insomnia remains underreported and undertreated, particularly among older adults. Many accept poor sleep as a normal part of aging, though specialists stress it should not be ignored.
The primary treatment is Cognitive Behavioural Therapy for Insomnia (CBTI). This method focuses on addressing behaviours and patterns that disrupt healthy sleep. Doctors also recommend practical steps, such as keeping a regular sleep routine, limiting screen time, avoiding caffeine, and creating a dark, cool, and quiet bedroom environment.
Experts highlight that while medication may sometimes help, a comprehensive approach works best. Effective treatment not only improves daily life but may also protect long-term brain health.
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