My name is Sean and I'm the Art Director here at Stack Exchange. I've been awarded the Fitness and Nutrition identity and communications development.
I'm happy to meet everyone and look forward to launching the site and supporting this community. :)
This design is meant to convey energy, and life force and power and at the same time be serene and nurturing. Hopefully embodying the combination of both Fitness and Nutrition.
One of the earlier concepts that seemed strong, was showing how food and exercise are both energy. Wrapping a person exercising with light trails, or "energy trails" seemed to achieve a positive ambient image, that was colorful and rich, without being over the top.
The brand is an apple combined with a heart. The heart rate monitor image divides the two objects, but also seems to join them. These icons are generally accepted images of nutrition and fitness. Plus they just seemed to make an interesting icon...
I hope you enjoy looking at this as much as I've enjoyed making them. I look forward to your thoughts and feedback.