Sleep Problems: Insomnia, Sleep Apnea, and Chronic Fatigue
We spend a third of our lives asleep — yet sleep remains one of the most underestimated components of health. We easily notice a sore leg or a sore throat. But chronic poor sleep, insomnia, and persistent fatigue are accepted as normal — something to simply endure. That's not how it should be. Sleep disorders are treatable, and ignoring them has serious long-term consequences.
Insomnia: Why It Happens and What to Do
Insomnia is not just "trouble falling asleep." It covers a whole spectrum of disturbances: difficulty falling asleep, frequent awakenings during the night, waking up too early and being unable to return to sleep, and feeling like your sleep is shallow and unrefreshing — even though the opportunity to sleep is there.
Acute insomnia (days to a few weeks) is a very common response to stress, jet lag, pre-event anxiety, or illness. It resolves when the cause resolves.
Chronic insomnia (three or more nights per week for three months or longer) is a distinct condition requiring treatment. The most common cause in adults is psychophysiological insomnia: a person becomes so worried about not sleeping that the worry itself prevents sleep — creating a self-reinforcing cycle.
Other common causes of chronic insomnia include anxiety disorders and depression, chronic pain, sleep apnea (which prevents proper recovery), restless legs syndrome, certain medications, excessive caffeine and alcohol use, and poor sleep hygiene and schedule.
The gold standard for treating chronic insomnia is Cognitive Behavioral Therapy for Insomnia (CBT-I). It outperforms sleeping pills in the long term and causes no dependency. Sleeping medications may be prescribed short-term by a physician — but not as a permanent solution.
Sleep Apnea: How to Tell If You Have It
Obstructive sleep apnea (OSA) is a condition in which the throat muscles relax during sleep to the point of blocking the airway. The brain is repeatedly forced to "wake" the body to restore breathing. The person is usually unaware of these micro-arousals — yet there may be dozens per hour.
Classic signs of sleep apnea: loud snoring with pauses followed by sudden gasps or choking sounds — noticeable to a partner or roommate. The person themselves most often reports: severe daytime sleepiness (falling asleep on public transport, while reading, sometimes while driving), feeling unrefreshed after a "full" night's sleep, morning headaches, irritability, and reduced concentration.
Risk factors: excess weight (especially fat deposits around the neck), male sex, age over 40, large neck circumference, jaw anatomy, smoking, and alcohol use.
Diagnosis involves overnight breathing assessment. A basic option is screening pulse oximetry (a finger probe worn overnight). More detailed is in-lab polysomnography.
Treatment: for mild OSA — weight loss, avoiding alcohol, and sleeping on your side. For moderate to severe — CPAP therapy (a device with a mask that keeps the airway open). Most people who begin CPAP therapy notice significant improvement in how they feel within the first few weeks.
Chronic Fatigue Syndrome
Chronic fatigue syndrome (CFS, or myalgic encephalomyelitis) is a serious illness that is often unrecognized and not taken seriously. Its defining feature is severe, debilitating fatigue that does not improve with rest and substantially limits daily activities for at least six months.
The key symptom that distinguishes CFS from ordinary tiredness is worsening of symptoms after physical or mental effort — even minimal effort. This is called post-exertional malaise. After a short walk or conversation, the person may need hours or days to recover.
Other symptoms include unrefreshing sleep (despite exhaustion), cognitive impairment ("brain fog" — difficulty with memory and focus), orthostatic intolerance (worsening when upright — palpitations, dizziness on standing), muscle and joint pain without inflammation, and recurring sore throat and swollen lymph nodes.
CFS is a diagnosis of exclusion: anemia, hypothyroidism, diabetes, depression, cancer, autoimmune diseases, and other conditions producing similar symptoms must be ruled out first. There is no specific cure for CFS yet, but symptom management and careful activity pacing substantially improve quality of life.
When Poor Sleep Is a Symptom of a Disease
Sleep disturbances can be primary (arising on their own) or secondary (a consequence of another condition). It's important to understand that sometimes poor sleep points to something that needs treatment.
Depression and anxiety disorders are perhaps the most frequent companions of insomnia. It is often hard to tell what came first: depression disrupts sleep, and poor sleep provokes depression — both directions operate simultaneously.
Chronic pain (from arthritis, neuropathy, fibromyalgia, and other conditions) makes normal sleep nearly impossible. Treating the pain improves sleep.
Restless legs syndrome causes uncomfortable sensations in the legs (tingling, burning, an urge to move), worsening in the evening and at night. It interferes with falling asleep, is more common than generally recognized, and responds well to treatment.
Thyroid disorders, diabetes, heart failure, chronic pain, and depression can all manifest through sleep disturbances. This is exactly why chronic insomnia should not simply be treated with sleeping pills — the underlying cause needs to be understood.
What Helps Improve Sleep (Without Sleeping Pills)
Many sleep problems can be significantly improved without medication — through changes in habits and routine. This is called "sleep hygiene."
A consistent wake time is perhaps the single most important factor. Get up at the same time every day, including weekends. This anchors your biological clock.
Limit time in bed. If you're not sleeping, don't lie in bed for hours. The bed should be associated with sleep, not with anxiety about insomnia.
Light and darkness. Bright light in the morning (ideally sunlight), dim light in the evening. Screens before bed suppress melatonin production.
Bedroom temperature. A cool room (18–20°C) promotes deeper sleep.
Caffeine. It stays in the body for up to 8–10 hours. If you have sleep problems, your last coffee or tea should be no later than 2 PM.
Alcohol. Many people use it "to relax," but alcohol disrupts deep sleep stages and causes frequent awakenings in the second half of the night.
Physical activity. Regular exercise improves sleep quality. But intense workouts within 2–3 hours of bedtime can have the opposite effect and increase alertness.
Frequently Asked Questions
How many hours of sleep is normal?
For adults — 7–9 hours per night. For teenagers — 8–10 hours. Quantity matters, but so does quality: continuous, deep sleep restores the body better than 9 hours of fragmented sleep.
Are naps harmful?
For people with chronic insomnia, napping can worsen nighttime sleep. Without sleep problems, a short nap (20–30 minutes) is beneficial and improves focus. A long nap (over an hour) tends to disrupt the nighttime schedule.
Does melatonin help with insomnia?
Melatonin is not a sleeping pill — it is a "time signal" for the biological clock. It works well for circadian rhythm disruptions (jet lag, shift work). For typical chronic insomnia, its effect is limited. Consult a doctor before use.
Can you "catch up" on sleep over the weekend?
Short-term sleep debt can be partially recovered. But chronic sleep deprivation accumulates and is not fully offset by longer weekend sleep. Moreover, large schedule shifts on weekends ("social jet lag") themselves disrupt the biological clock.
Which doctor should I see for sleep problems?
Start with a general practitioner — they will rule out physical causes and refer you onward if needed. A sleep medicine specialist (somnologist) handles sleep disorders. For suspected apnea — a pulmonologist or sleep lab specialist. For insomnia with anxiety or depression — a psychiatrist or psychotherapist.
Symptomatica is an informational reference service. Not a medical service; does not diagnose or prescribe treatment. For any symptoms, please consult a doctor.