IMAGE PLACEHOLDER - Replace with actual image

Image Requirements:
- Filename: hero.jpg
- Recommended size: 1200x630px (16:9 aspect ratio)
- Format: JPG, optimized for web
- Max file size: 150KB

Image Content Suggestions:
- CBD oil bottle with medical/cardiology elements (stethoscope, ECG graph)
- Professional healthcare setting
- Warm, trustworthy colors (blues, whites, greens)
- Person consulting with doctor about CBD
- Visual emphasis on safety and medical supervision

Alt Text (already in frontmatter):
"CBD olaj és szívegészség - orvosi konzultáció fontossága szívbetegeknek"

SEO Notes:
- Image should convey professionalism and medical authority
- Should visually communicate the serious nature of cardiovascular health
- Include elements suggesting consultation and safety