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Evidence-Based Medical Information

Health Conditions Encyclopedia

Comprehensive, physician-reviewed information about common and complex health conditions. Understanding your health starts with reliable, evidence-based medical knowledge.

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Explore Health Conditions by Category

Browse comprehensive information organized by medical specialty and body system

Cardiovascular Conditions
Heart and blood vessel disorders

Hypertension

45% of adults

Common

Coronary Artery Disease

6.2% of adults

Serious

Heart Failure

2.2% of adults

Critical

Atrial Fibrillation

2.7% of adults

Moderate

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Neurological Conditions
Brain and nervous system disorders

Alzheimer's Disease

6.5M Americans

Critical

Parkinson's Disease

1M Americans

Serious

Migraine

12% of population

Moderate

Epilepsy

1.2% of population

Serious

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Respiratory Conditions
Lung and breathing disorders

Asthma

8.4% of adults

Moderate

COPD

6.4% of adults

Serious

Sleep Apnea

26% of adults

Moderate

Pneumonia

Variable

Serious

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Metabolic Conditions
Metabolism and endocrine disorders

Type 2 Diabetes

11.3% of adults

Serious

Obesity

36.2% of adults

Moderate

Thyroid Disorders

12% of population

Moderate

Metabolic Syndrome

34.7% of adults

Moderate

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Musculoskeletal Conditions
Bone, joint, and muscle disorders

Arthritis

23% of adults

Moderate

Osteoporosis

16.4% of women 50+

Moderate

Back Pain

80% lifetime risk

Common

Fibromyalgia

2% of population

Moderate

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Sensory Conditions
Vision and hearing disorders

Diabetic Retinopathy

28.5% of diabetics

Serious

Glaucoma

2.7M Americans

Serious

Hearing Loss

15% of adults

Moderate

Macular Degeneration

2.1M Americans

Serious

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Sleep Disorders

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Important Medical Disclaimer

The information provided on this page is for educational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider before making any decisions about your health or treatment options. If you are experiencing a medical emergency, call 911 immediately.