Health Conditions A-Z
Explore Health Conditions, Symptoms, Risks, and Early Warning Signs
Health Conditions A-Z is designed as a practical starting point for learning about common diseases, symptoms, risk factors, prevention, screening, and when medical evaluation may be needed. From chronic conditions to sudden symptoms, understanding the basics can help people recognize health concerns earlier and make more informed decisions.
Why it matters: many health conditions begin with mild, confusing, or easily
overlooked symptoms. Learning how conditions are connected to body systems, age, lifestyle,
family history, and warning signs can help readers seek timely care before problems become
more serious.
Symptoms & Warning Signs
Chronic Diseases
Prevention & Screening
Risk Factors
Body System Guides
Early Detection
76.4%
U.S. adults reported one or more chronic conditions in 2023
Chronic conditions are common and may affect the heart, lungs, kidneys, brain, joints,
metabolism, immune system, digestive system, and overall quality of life.
Source: CDC, Preventing Chronic Disease, 2025 — in 2023, 76.4% of U.S. adults reported one or more chronic conditions.
51.4%
U.S. adults reported multiple chronic conditions in 2023
Many people live with more than one condition at the same time, making prevention,
early recognition, medication safety, and coordinated care especially important.
Source: CDC, Preventing Chronic Disease, 2025 — 51.4% of U.S. adults reported two or more chronic conditions.
70.9%
U.S. deaths accounted for by the 10 leading causes in 2024
Many leading causes of death are linked with chronic disease, lifestyle risks, aging,
delayed detection, and complications that may be reduced through prevention and timely care.
Source: CDC / NCHS, Mortality in the United States, 2024 — the 10 leading causes accounted for 70.9% of all deaths.
Horizon Health Institute provides educational health content designed to
support early awareness, prevention, and better understanding of common medical conditions.