Feeling constantly sleepy despite getting enough rest often signals an underlying issue beyond just sleep duration, such as poor sleep quality (sleep apnea), nutrient deficiencies (iron, B vitamins, Vitamin D), stress/mental health (burnout, anxiety, depression), medical conditions (thyroid, anemia), lifestyle factors (diet, alcohol), or Chronic Fatigue Syndrome (CFS). Consulting a doctor for blood work and a comprehensive checkup is crucial to identify the root cause, as the solution often involves treating the underlying problem, not just sleeping more.
Vitamin and mineral deficiencies, including B2, B3, B5, B6, B9, B12, C, D, iron, and magnesium, are among the most common causes of unexplained fatigue. Vitamin D deficiencies affect over 50% of the global population, and approximately 12.5% have iron deficiency anemia.
Always Tired? Fatigue Could Be a Sign of Vitamin D Deficiency. If you're constantly feeling worn out, sluggish, or low on energy—especially during colder seasons or after long indoor stretches—your fatigue could be a sign of vitamin D deficiency.
Fatigue red flags signal potentially serious issues beyond normal tiredness, including unexplained weight loss, persistent fever, night sweats, shortness of breath, chest pain, severe headaches, confusion, or new neurological/joint problems alongside exhaustion. Other signs include fatigue worsening with activity, significant cognitive/mood changes, or lack of energy despite rest, suggesting conditions like infection, autoimmune disease, heart problems, cancer, or mental health issues, warranting prompt medical evaluation.
Exhaustion that doesn't let up might be a sign of:
When trying to cope with fatigue, a simple rule is to remember The Five P's: Plan, Prioritise, Pace, Position and Permission. Plan and organise your time. Plan your day ahead with periods of rest and periods of activity.
Fatigue becomes worrisome when it lasts over two weeks despite rest, significantly impacts daily activities, comes on suddenly without clear cause, or accompanies "red flag" symptoms like unexplained weight loss, shortness of breath, fever, severe pain, unusual bleeding, or heart issues, signaling a need for prompt medical attention for potential underlying conditions like anemia, diabetes, sleep apnea, thyroid problems, or infections.
Symptoms of vitamin B12 or folate deficiency anaemia
Anaemia is where you have fewer red blood cells than normal or you have an abnormally low amount of a substance called haemoglobin in each red blood cell. General symptoms of anaemia may include: extreme tiredness (fatigue) lack of energy (lethargy)
10 Unexpected Signs of a Vitamin D Deficiency
Complex carbohydrates
The four Ps are problem solving, planning, prioritising and pacing. The aim is to think of the four Ps at the beginning of each day or week to help you manage your energy levels.
Issues with specific organs could lead to severe fatigue. The thyroid, liver and brain are possible contributors, but heart and lung conditions are the most common cause. If this condition becomes serious, your doctor may recommend cardiac care or cardiopulmonary.
Sleep disorders and sleep-related disorders of breathing, depression (18.5%), and excessive psychosocial stress are the most common causes of persistent fatigue. Previously undiagnosed cancer is a rare cause, accounting for only 0.6% of cases (95% confidence interval [0.3; 1.3]).
Fatigue becomes worrisome when it lasts over two weeks despite rest, significantly impacts daily activities, comes on suddenly without clear cause, or accompanies "red flag" symptoms like unexplained weight loss, shortness of breath, fever, severe pain, unusual bleeding, or heart issues, signaling a need for prompt medical attention for potential underlying conditions like anemia, diabetes, sleep apnea, thyroid problems, or infections.
When trying to cope with fatigue, a simple rule is to remember The Five P's: Plan, Prioritise, Pace, Position and Permission. Plan and organise your time. Plan your day ahead with periods of rest and periods of activity.
Complex carbohydrates
Evaluation of ME/CFS
Get moving. You might feel that exercise is the last thing on your mind. But, in fact, regular exercise will make you feel less tired in the long run, so you'll have more energy. Even a single 15-minute walk can give you an energy boost, and the benefits increase with more frequent physical activity.
Symptoms of fatigue
Fatigue is the most common symptom reported by patients with liver disease. Although the underlying pathogenesis of fatigue in liver disease is still poorly defined, it appears to involve changes in central neurotransmission, which result from signalling between the diseased liver and the brain.
Symptoms said to be due to adrenal fatigue include tiredness, trouble falling asleep at night or waking up in the morning, salt and sugar craving, and needing stimulants like caffeine to get through the day. These symptoms are common and non-specific, meaning they can be found in many diseases.
Fibromyalgia (FMS) and chronic fatigue syndrome (CFS), also called myalgic encephalomyelitis (ME/CFS), are chronic conditions that have similar symptoms. Both cause extreme tiredness, which could cause ME/CSF to be misdiagnosed as fibromyalgia.
Deficiency of vitamin D might be associated with diseases of immune dysregulation, one manifestation of which could be excessive daytime sleepiness (Zitterman and Gummert 2010; Hoeck and Pall 2011).
She spoke about different types of fatigue and how our symptoms might vary after we've experienced each kind. She listed six types of fatigue: social, emotional, physical, pain, mental, and chronic illness.