Chronic disease shows adverse effects on health. Give reasons.

Explanation

### Step-by-Step Solution:

1. **Definition of Chronic Diseases**: Chronic diseases are long-lasting conditions that can be controlled but not cured. They typically persist for a year or more and require ongoing medical attention or limit activities of daily living.

2. **Long-term Effects**: Unlike acute diseases, which are temporary and often resolve on their own, chronic diseases can have long-term effects on the body. They can lead to persistent symptoms that affect a person's quality of life.

3. **Impact on Body Systems**: Chronic diseases can disrupt normal bodily functions. For example, conditions like diabetes can affect the body's ability to regulate blood sugar, while heart disease can impair cardiovascular function.

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