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Design a premium, modern, minimalist logo for a medical and health education YouTube channel named "The Human Health Hub". Create a clean circular logo featuring a modern human figure integrated with a stethoscope forming a heart shape. Include a subtle ECG heartbeat line and a medical cross. Use a professional blue (#0066CC) and green (#00A86B) color palette on a white background. The design should be flat vector style, highly recognizable, clean, elegant, and suitable for YouTube profile pictures. Use bold modern sans-serif typography for "The Human Health Hub". Avoid clutter, gradients, shadows, 3D effects, or unnecessary details. Style: Premium healthcare branding, minimalist, vector, flat design, professional, trustworthy, high contrast, scalable, transparent background, 1:1 aspect ratio, 4K quality.