Jennifer Garner was spotted running alongside her boyfriend John Miller in Brentwood, Los Angeles. The couple, who rarely make public appearances together, were seen in activewear as they jogged together. Garner wore a black tank top tucked into black leggings, while Miller sported a black t-shirt and gray sweatpants. Despite their low-key approach to fame, the couple is reportedly very happy together and prefers to keep their relationship private. Additionally, Garner spoke about the benefits of exercise and its positive impact on mental health during a recent interview.