Non-Communicable Diseases

Non-Communicable Diseases (NCDs) are diseases that do not spread from one person to another and are usually not caused by germs (pathogens).

• What causes them? Often a mix of lifestyle (food habits, physical activity, sleep, stress), environment (air pollution, harmful chemicals), and genetics (family history).
• How they develop: Many NCDs build up slowly over years. For example, too much sugary food and too little exercise can gradually affect how the body controls blood sugar.
• Examples you may know: diabetes, asthma, heart disease, and many types of cancer.
• Not “infectious,” but still serious: You can sit next to someone with diabetes or cancer and you won’t “catch” it, but these diseases can still be long-lasting and may need regular treatment and monitoring.
• Prevention often means habits: A balanced diet, daily physical activity, avoiding tobacco, and managing stress can lower the risk of many NCDs.
• Important nuance: NCDs are not caused by pathogens, but some cancers can be linked indirectly to infections (for example, certain viruses can increase cancer risk). The disease still doesn’t spread like a cold or flu.

Knowing about NCDs matters because many of them can be prevented early and managed better with healthy choices and timely check-ups.