"Design a visually compelling header image for a health and wellness website homepage aimed at individuals aged 40 and above, focusing purely on imagery without text, symbols, or menu items. The image should elegantly depict the concept of transformation and rejuvenation for professionals in midlife, using only visual cues. Showcase a lifestyle shift from busy, stress-filled routines to a serene, balanced, and healthy existence. Include scenes of active, joyful living such as tranquil morning jogs, serene yoga sessions in nature, or the simple joy of preparing wholesome food. The imagery should be a harmonious blend of activity and relaxation, symbolizing a journey towards a healthier, more balanced life. Opt for a modern and sophisticated visual style, with a calming color scheme that conveys tranquility, energy, and optimism. The header image should be clean and impactful, perfectly suited for a top-tier health and wellness website, immediately engaging viewers who are seeking a positive change in their health and lifestyle, without relying on any textual or symbolic elements."