In today’s fast-paced lifestyle, daytime drowsiness or drowsiness is considered common. Most people dismiss it as a result of staying up late, excessive work pressure, or general laziness. However, medical experts and recent health research suggest that if you experience excessive daytime sleepiness despite getting adequate sleep every night, don’t take it lightly. In medical terms, this condition is called “excessive daytime sleepiness” (EDS). This condition not only impacts your daily performance and concentration, but can also be a primary symptom of several serious physical and mental illnesses.
Not just laziness, but a sign of serious illnesses developing within the body.
Often, when a person yawns or falls asleep repeatedly during work or during the day, they are considered lazy in society. However, from a medical perspective, excessive daytime sleepiness indicates a serious disturbance in the body’s functioning. When our body’s circadian rhythm is imbalanced or internal organs are not functioning properly, the brain constantly sends signals of fatigue and sleepiness. If this problem persists, it increases the risk of accidents in daily life, and has a very negative impact on your heart, brain, and metabolism.
Sleep Apnea and Narcolepsy: When Breathing and Sleep Are Disrupted
The most common and dangerous cause of excessive daytime sleepiness is obstructive sleep apnea (OSA). In this condition, a person’s breathing repeatedly stops for a few seconds during sleep due to obstruction of the airway. Although the patient may not realize this at night, the lack of oxygen prevents their brain from fully entering a deep sleep throughout the night. As a result, even after waking up in the morning, the person does not feel refreshed and remains extremely lethargic throughout the day.
In addition, a neurological disorder called narcolepsy can also be a major cause. It affects the brain’s ability to regulate sleep and wake cycles. A person with narcolepsy may experience sudden, intense sleep episodes at any time of the day, even while talking or driving. Restless Legs Syndrome (RLS) is another condition in which a strange restlessness in the legs repeatedly disrupts sleep at night, leading to extreme fatigue during the day.
A Deep Connection to Diabetes, Thyroid, and Heart Disease
Feeling excessively drowsy during the day isn’t limited to sleep disorders, but is also directly linked to the body’s metabolic and cardiovascular health. In patients with type 2 diabetes, insulin resistance or fluctuations in blood sugar levels can cause cells to lack the proper amount of energy, leading to a constant feeling of fatigue.
Similarly, hypothyroidism, a sluggish thyroid gland, slows down the body’s metabolism, causing a person to feel sleepy and weak all the time. People suffering from heart problems also experience extreme lethargy and fatigue when adequate oxygen-rich blood is not reaching their body parts. Mental health disorders like depression and excessive stress can also significantly disrupt sleep patterns.
Lack of Nutrition and an Unhealthy Lifestyle
In today’s times, poor eating habits and an unbalanced lifestyle are also rapidly exacerbating this problem. A deficiency in vitamin D and vitamin B12 affects the nervous system and energy production, making the body feel heavy throughout the day. Furthermore, constant use of mobile phones, laptops, or TV screens just before bedtime disrupts the release of the sleep hormone melatonin in the brain. Consuming excessive junk food, refined carbohydrates, and sugar also causes rapid increases and decreases in the body’s sugar levels, leading to sudden, intense sleepiness during the day.
When is it essential to consult a doctor?
If daytime sleepiness occurs more than three days a week and persists for several weeks, ignoring it can be fatal. If you fall asleep while working, studying, watching TV, or—most dangerously—driving, you should immediately consult a sleep specialist or physician. If you experience loud snoring, morning headaches, or frequent dry mouth, this could be a clear sign of sleep apnea, for which a polysomnography (a sleep study) test is recommended.
Effective and Practical Solutions to Overcome Daytime Lethargy
To overcome this problem, it’s essential to first improve your lifestyle and sleep habits. Make it a point to get 7 to 8 hours of quality sleep every night and establish a consistent bedtime and wake-up time. Get fresh morning sunlight, as sunlight resets the body’s biological clock and reduces drowsiness hormones.
Include green leafy vegetables, fruits, nuts, and protein-rich foods in your daily diet. Drink plenty of water, as dehydration is a major cause of lethargy. Avoid drinking excessive tea or coffee during the day, as caffeine can make you feel even more lethargic once its temporary effects wear off.