Condition Library
In-depth guides to health conditions — symptoms, causes, diagnosis, and treatment
A
Atherosclerosis
CardiovascularAtherosclerosis occurs when fatty deposits called plaques build up inside artery walls, narrowing the vessels and restricting blood flow. Over time, this can lead to heart attacks, strokes, or peripheral artery disease depending on which arteries are affected.
Atrial Fibrillation
CardiovascularAtrial fibrillation is the most common type of irregular heartbeat, where the heart's upper chambers beat chaotically and out of sync with the lower chambers. This increases the risk of blood clots, stroke, and heart failure.
Asthma
RespiratoryAsthma is a chronic respiratory condition in which the airways become inflamed and narrowed, making breathing difficult. Triggers like allergens, exercise, cold air, or respiratory infections can cause flare-ups (asthma attacks) with coughing, wheezing, and chest tightness.
ADHD
Mental HealthADHD is a neurodevelopmental disorder characterized by persistent patterns of inattention, hyperactivity, and impulsivity that interfere with functioning and development. While often thought of as a childhood condition, ADHD frequently persists into adulthood and can significantly affect work, relationships, and self-esteem.
C
Crohn's Disease
DigestiveCrohn's disease is a type of inflammatory bowel disease that causes chronic inflammation anywhere in the digestive tract, most commonly the end of the small intestine. It can penetrate deep into bowel tissue and lead to serious complications including strictures and fistulas.
COPD
RespiratoryCOPD is a group of progressive lung diseases — primarily emphysema and chronic bronchitis — that cause airflow obstruction and breathing difficulties. Smoking is the leading cause, and the disease worsens over time, making everyday activities increasingly challenging.
Celiac Disease
Immune SystemCeliac disease is a genetic autoimmune disorder in which eating gluten — a protein found in wheat, barley, and rye — triggers an immune response that damages the small intestine's lining. This prevents proper nutrient absorption and can lead to a wide range of symptoms beyond the digestive system.
E
Epilepsy
NeurologicalEpilepsy is a neurological disorder characterized by recurrent, unprovoked seizures caused by abnormal electrical activity in the brain. Seizures can range from brief lapses in attention to full-body convulsions, and the condition can significantly impact daily life and safety.
Eczema
SkinEczema is a chronic inflammatory skin condition that causes the skin to become red, itchy, dry, and cracked. Flare-ups can be triggered by allergens, irritants, stress, temperature changes, and certain foods. While there is no cure, most people can effectively manage symptoms.
G
GERD
DigestiveGERD occurs when stomach acid frequently flows back into the esophagus, irritating its lining and causing persistent heartburn. If left untreated, chronic acid exposure can lead to esophagitis, Barrett's esophagus, and an increased risk of esophageal cancer.
Generalized Anxiety Disorder
Mental HealthGAD is a mental health condition characterized by persistent, excessive worry about a variety of everyday topics that is difficult to control and interferes with daily life. People with GAD often anticipate disaster and may be overly concerned about money, health, family, or work.
H
Hypertension
CardiovascularHypertension is a chronic condition where blood pressure in the arteries remains persistently elevated, increasing the risk of heart disease, stroke, and kidney damage. It is often called the 'silent killer' because it rarely causes noticeable symptoms until significant damage has occurred.
Heart Failure
CardiovascularHeart failure is a progressive condition in which the heart muscle becomes too weak or stiff to pump blood efficiently, causing fluid to back up in the lungs, abdomen, and extremities. It does not mean the heart has stopped but rather that it cannot meet the body's needs.
Hypothyroidism
EndocrineHypothyroidism occurs when the thyroid gland doesn't produce enough thyroid hormones, slowing down the body's metabolism. This causes a wide range of symptoms including fatigue, weight gain, cold intolerance, and depression that often develop so gradually they go unnoticed for years.
M
Migraine
NeurologicalMigraine is a neurological condition that causes intense, throbbing headaches often accompanied by nausea, vomiting, and extreme sensitivity to light and sound. Attacks can last hours to days and may be preceded by warning signs called aura, which include visual disturbances or tingling.
Multiple Sclerosis
NeurologicalMultiple sclerosis is an autoimmune disease in which the immune system attacks the protective myelin sheath covering nerve fibers, disrupting communication between the brain and body. Symptoms vary widely depending on which nerves are affected and can range from mild numbness to severe disability.
Metabolic Syndrome
EndocrineMetabolic syndrome is a cluster of interconnected conditions — elevated blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol levels — that occur together and dramatically increase the risk of heart disease, stroke, and type 2 diabetes.
Major Depressive Disorder
Mental HealthMajor depressive disorder is a serious mental health condition that causes persistent feelings of sadness, hopelessness, and a loss of interest in activities once enjoyed. It affects how a person thinks, feels, and handles daily activities, and can lead to significant impairment in all areas of life.
P
Parkinson's Disease
NeurologicalParkinson's disease is a progressive neurodegenerative disorder that occurs when nerve cells in the brain that produce dopamine gradually break down. This leads to worsening motor symptoms including tremor, stiffness, and difficulty with balance and coordination.
Polycystic Ovary Syndrome
EndocrinePCOS is a hormonal disorder causing enlarged ovaries with small cysts on the outer edges. It leads to irregular menstrual periods, excess androgen levels, and difficulty conceiving. PCOS is also associated with insulin resistance, weight gain, and an increased risk of type 2 diabetes.
Psoriasis
SkinPsoriasis is a chronic autoimmune skin condition that speeds up the life cycle of skin cells, causing them to build up rapidly on the surface. This results in thick, red, scaly patches that can be itchy, painful, and emotionally distressing. It is not contagious.
R
Rheumatoid Arthritis
MusculoskeletalRheumatoid arthritis is an autoimmune disease in which the immune system mistakenly attacks the lining of the joints, causing painful swelling, joint erosion, and deformity. Unlike osteoarthritis, RA can also affect other organs including the skin, eyes, lungs, and heart.
Rosacea
SkinRosacea is a chronic inflammatory skin condition that primarily affects the central face, causing redness, visible blood vessels, bumps, and in some cases eye irritation. Triggers include sun exposure, hot drinks, spicy foods, alcohol, and stress. Without treatment, it tends to worsen over time.
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