As a certified cardiologist with over a decade of experience, provide a comprehensive, evidence-based guide on how to improve cardiovascular health for [AGE GROUP] with [SPECIFIC HEALTH CONDITIONS]. Include recommendations on [DIETARY HABITS], [EXERCISE ROUTINES], and [LIFESTYLE CHANGES], tailored to their unique needs. Explain the science behind each recommendation, potential risks, and measurable benefits. Use clear, actionable steps and avoid medical jargon unless defined. Prioritize methods backed by peer-reviewed studies and highlight any controversies or alternative approaches in the field.