Preventing cancer involves a multifaceted approach, including lifestyle modifications, dietary choices, and avoiding known carcinogens. Adopting a healthy diet rich in fruits, vegetables, and whole grains while minimizing the intake of processed foods and red meats can significantly reduce cancer risk. Regular exercise, maintaining a healthy weight, and avoiding tobacco and excessive alcohol consumption are also crucial. Moreover, staying informed about and limiting exposure to environmental hazards like UV radiation and chemicals can further aid in cancer prevention.