Table of contents
Contributors
Dr. Narayanan Mooss
Ayurvedic Psychiatrist
Key Take Aways
Full Article
“To find the cure, one must first understand the catalyst behind the silence of the night.”
For instance, you might wonder:
- Can a poor diet be one of the causes of insomnia?
- Is insomnia genetic?
- Does exercise help with insomnia?
All of these questions are normal and it’s understandable that you want to support your loved one to the best of your ability
While your questions are valid, it’s also important to understand that every person’s experience with depression is unique, so there are a few things you can do to help your loved one and yourself.
The Psychological Weight: Stress and Anxiety
Mental health remains one of the most prevalent causes of insomnia. Stress regarding work, school, health, or family can keep the mind active at night, making it difficult to relax. Anxiety disorders, such as post-traumatic stress disorder (PTSD), may also disrupt sleep patterns. The “tired but wired” phenomenon occurs when the body’s stress response system, the sympathetic nervous system, remains in a state of hyperarousal.
“Insomnia is rarely just about sleep — it’s often the mind, body, and lifestyle quietly struggling to find balance.”
Physical Health and Underlying Medical Conditions
Chronic pain is a significant physical driver of sleep disruption. Conditions such as arthritis, back problems, or fibromyalgia can make it impossible to find a comfortable sleeping position. Other medical causes of insomnia include hyperthyroidism, reflux disease (GERD), and respiratory issues like asthma. In these cases, the insomnia is often secondary to the discomfort or biological changes caused by the primary illness.
The Impact of Circadian Rhythm Disruptions
Your internal clock, or circadian rhythm, guides your sleep-wake cycle. When this clock is disrupted, insomnia often follows. This is common in individuals who perform shift work or travel across multiple time zones (jet lag). These disruptions interfere with the natural production of melatonin, the hormone that signals to your brain that it is time to sleep.
Medications and Substance Interferences
Many prescription drugs can interfere with sleep, including certain antidepressants, medications for high blood pressure, and allergy treatments. Additionally, many over-the-counter products, such as some pain relievers and weight-loss supplements, contain caffeine or other stimulants. Alcohol, while often used as a sedative, actually prevents deep sleep stages and causes frequent awakenings throughout the night.
Environmental Triggers and Lifestyle Habits
External factors are frequently overlooked causes of insomnia. An uncomfortable mattress, excessive noise, or a room that is too warm can prevent the body from entering a deep sleep state. Modern lifestyle habits, particularly “blue light” exposure from smartphones and tablets late at night, trick the brain into thinking it is still daytime, effectively suppressing the sleep drive.
Summary of the Case: Insomnia Treatment Using CBT‑I
The Mayo Clinic article explains that insomnia is a widespread sleep disorder characterised by difficulty falling asleep, staying asleep, or waking too early. It emphasises that Cognitive Behavioural Therapy for Insomnia (CBT‑I) is the first-line, evidence-based treatment, often more effective and longer‑lasting than sleep medications.
As described, CBT-I works by identifying and changing thoughts, habits, and behaviours that maintain insomnia. The cognitive component teaches individuals to challenge negative beliefs, such as fear of not sleeping, while the behavioural component establishes healthy sleep routines. Behavioural strategies include stimulus control (using the bed only for sleep), maintaining consistent sleep-wake times, avoiding naps, and leaving the bed after 20 minutes of wakefulness to prevent pairing wakefulness with the sleep environment.
Although the article does not present numerical case statistics, it outlines common clinical steps used by sleep specialists. Individuals may be asked to keep a 1–2‑week sleep diary to track patterns and triggers. Treatment may also include lifestyle adjustments such as reducing caffeine, increasing physical activity, improving bedroom environment, and reducing alcohol intake. Relaxation methods, meditation, imagery, and biofeedback may further support symptom improvement.
Overall, the case demonstrates that CBT-I addresses the root causes of insomnia, offering safer and more sustainable results compared to sleeping pills.
Expert Insights on Sleep Science
“Insomnia is not just a nighttime problem; it is a 24-hour disorder of hyperarousal. We must treat the day to fix the night.” — Dr Michael Perlis, Director of the Penn Behavioural Sleep Medicine Program.
“The brain is not a light switch; it’s more like an aeroplane that needs a long runway to land. Most causes of insomnia relate to the lack of that runway.” — Dr Matthew Walker, Neuroscientist and Author of Why We Sleep.
When Should You Seek Help?
If your difficulty sleeping has become a regular occurrence, it is time to consult a professional. You should seek help if:
- Sleep problems persist for more than three nights a week for at least three months.
- You experience significant distress or impairment in your daily life (work, social, or personal).
- You rely on alcohol or unprescribed medications to fall asleep.
- You experience "micro-sleeps" or fall asleep while driving.
FAQs:
Q: Can a poor diet be one of the causes of insomnia?
Ans. Yes. High sugar intake and heavy meals late at night can cause energy spikes and digestive discomfort that prevent the body from settling into sleep.
Q: Is insomnia genetic?
Ans. Research suggests there is a genetic component to sleep reactivity, how easily your sleep is disrupted by stress, though environmental factors usually trigger the disorder.
Q: Does exercise help with insomnia?
Ans. Generally, yes. Regular physical activity can improve sleep quality, but exercising too close to bedtime can act as a stimulant for some people.
Conclusion
Insomnia is a complex condition with a variety of overlapping triggers. Whether the root lies in psychological stress, physical discomfort, or modern lifestyle habits, recognising the causes of insomnia allows you to move from passive frustration to active recovery. By prioritising sleep hygiene and seeking professional guidance, when necessary, you can reclaim the restorative rest required for a healthy, vibrant life.