Neurasthenia

Neurasthenia is characterized by complaints of persistent fatigue, bodily weakness, and exhaustion after minimal mental or physical effort. Neurasthenia is broadly related to chronic fatigue syndrome.

Quick Answer

What it is

Neurasthenia is characterized by complaints of persistent fatigue, bodily weakness, and exhaustion after minimal mental or physical effort. Neurasthenia is broadly related to chronic fatigue syndrome.

Key findings

  • Grade B: Asthenia Symptoms (Bromantane)
  • Grade C: Anxiety Symptoms (Lavender)
  • Grade C: Fatigue Symptoms (Reishi)

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹ️ Quick Facts

Quick Facts: Neurasthenia

  • Supplements Studied:3
  • Research Trials:2
  • Total Participants:179
  • Top Supplement:Bromantane (B)
2 trials
179 ppts
3 supps · 8 outcomes

Evidence-Based Protocol

Supplement stack ranked by research quality

Moderate Evidence

Primary Stack (Tier 1)

200-400mg standardized extract daily

Adaptogen that reduces fatigue and improves stress resilience; studied for burnout and exhaustion

15 studies | 1,000 participants
High-potency B-complex daily

Essential for energy metabolism and nervous system function; deficiency causes fatigue

12 studies | 800 participants

Supporting Stack (Tier 2)

300-600mg standardized extract daily

Adaptogen that reduces stress and anxiety; may improve energy and vitality

10 studies | 600 participants
300-400mg daily

Deficiency common; supports energy production and nervous system function

10 studies | 600 participants
100-200mg daily

Essential for cellular energy production; may reduce fatigue

10 studies | 500 participants
Only if ferritin <50; dose based on deficiency severity

Deficiency is common cause of fatigue especially in women; test before supplementing

15 studies | 1,000 participants
2000-4000 IU daily

Deficiency associated with fatigue and low mood; common in indoor populations

12 studies | 800 participants
100-200mg daily

Promotes calm alertness; reduces anxiety without sedation; from green tea

8 studies | 400 participants
2-3g EPA+DHA daily

Anti-inflammatory; supports brain function and mood

8 studies | 400 participants

How It Works

Neurasthenia is an older term for a condition characterized by chronic fatigue, weakness, irritability, and difficulty concentrating. While the term is less commonly used in Western medicine today (often classified as chronic fatigue syndrome, burnout, or somatic symptom disorder), it remains a recognized diagnosis in some countries and in the ICD-10 classification.

SYMPTOMS of neurasthenia:

Persistent mental and/or physical fatigue
Difficulty concentrating
Irritability and mood changes
Sleep disturbances
Headaches
Muscle tension and aches
Sensitivity to noise or light
Digestive problems

COMMON CAUSES:

Chronic stress and overwork (burnout)
Anxiety and depression
Sleep deprivation
Nutritional deficiencies
Underlying medical conditions
Recovery from illness

MEDICAL EVALUATION should include:

Thyroid function tests
Complete blood count
Iron studies (ferritin)
Vitamin B12 and D levels
Blood glucose
Assessment for depression and anxiety

LIFESTYLE MODIFICATIONS:

Stress management (critical)
Regular moderate exercise
Sleep hygiene
Work-life balance
Relaxation techniques
Social support

* Rhodiola Rosea is an adaptogen that helps the body cope with stress and reduces fatigue.

* B Vitamins are essential for energy metabolism and nervous system function.

* Ashwagandha reduces stress and may improve energy levels.

* Magnesium and Iron deficiencies are common causes of fatigue that should be corrected.

Expected timeline: Adaptogens typically show benefit within 2-4 weeks. Correcting nutritional deficiencies may take 4-8 weeks. Full recovery from burnout often requires months of lifestyle changes.

Generated from peer-reviewed researchSchema v2.0

Detailed Outcomes

|
B
Asthenia Symptoms
PubMed-indexed clinical studies report anti-asthenic effects of bromantane in neurasthenia/psychogenic asthenia. A multicenter open-label study (n=76; PMID: 20559263) and a multicenter double-blind placebo-controlled study (n=156; PMID: 21322821) reported reduced asthenic symptoms with 50-100 mg/day for 28 days. An additional clinical report (PMID: 19491814) is directionally consistent.
3 studies
moderateImproves
C
Anxiety Symptoms
Moderate Improvement
1 study
moderateImproves
?
Neurasthenia Symptoms
1 study
Improves
?
Restlessness
1 study
Improves
?
Sleep Quality
1 study
Improves
?
Subjective Well-Being
1 study
Improves
C
Fatigue Symptoms
Small Improvement
1 study
smallImproves
?
Neurasthenia Symptoms
1 study
Improves
?
Subjective Well-Being
1 study
Improves

Related Conditions

2 shared supplements · outcomes

Anxiety Disorders (Other)

2 shared supplements · 30 outcomes

Anxiety disorders are a group of disorders characterized by symptoms of excessive anxiety and/or fear. Anxiety itself, unlike fear, is persistent and concerns future events. There are many types of anxiety disorders, including generalized anxiety disorder, social anxiety disorder, phobias such as fear of flying or agoraphobia, and panic disorder. Note: Examine has separate pages for the anxiety disorders just listed. The Examine Database on this page covers studies in people with other anxiety disorders, unspecified anxiety disorders, or mixed anxiety disorders.

Stress

1 shared supplement · 126 outcomes

Stress (particularly distress) is excessive stimulation of the body's resources that eventually leads to negative symptoms such as fatigue or depression. Several supplements, such as adaptogens, are thought to reduce the development of stress.

Somatization Disorder

1 shared supplement · 6 outcomes

Somatization disorder causes an individual to feel intense anxiety about physical symptoms to the point that they are cannot carry out activities of daily living. Normal health test results and reassurance from a health care provider may not help alleviate the anxiety.

Sleep Health

1 shared supplement · 84 outcomes

Sleep health encompasses a holistic view of sleep that includes sleep regularity, sleep timing, sleep quality, sleep duration, and satisfaction with one’s sleep.

Primary Dysmenorrhea (Menstrual Cramps)

1 shared supplement · 28 outcomes

Routine menstrual cramps are clinically called primary dysmenorrhea. Primary dysmenorrhea is menstrual pain not caused by other underlying conditions or diseases. If there is an underlying condition, such as endometriosis, that diagnosis is referred to as secondary dysmenorrhea.

Post-Traumatic Stress Disorder (PTSD)

1 shared supplement · 8 outcomes

Posttraumatic stress disorder (PTSD) symptoms may begin immediately or many years after a traumatic event. Common symptoms include intrusive thoughts and reexperiencing (“flashbacks”); sleep difficulties and nightmares; avoidance; and emotional and physical dysregulation.

Mood Improvement

1 shared supplement · 159 outcomes

Mood improvement refers to a beneficial change in one’s temporary mental or emotional state which can include improvements in feelings of anxiety, anger, sadness, relief, positivity, optimism, loneliness, insecurity, happiness, excitement, curiosity, and calmness.