How are 'lifestyle diseases' defined?

Lifestyle diseases are defined as health conditions that are significantly influenced by individual lifestyle choices, such as diet, physical activity, smoking, and alcohol consumption. These diseases often develop over an extended period and are related to one's habits and behaviors rather than being caused by infectious agents or acute medical conditions.

Examples of lifestyle diseases include heart disease, diabetes, obesity, and some forms of cancer, all of which can often be prevented or managed through healthier lifestyle choices. Recognizing this definition helps to emphasize the importance of personal responsibility in maintaining health and mitigating the risks associated with these conditions.

The other definitions presented do not capture the essence of lifestyle diseases—genetic disorders are related to inherited traits, infections pertain to contagious and environmental factors, and acute conditions typically require immediate medical intervention rather than the ongoing lifestyle management that characterizes lifestyle diseases.