Jennifer Garner, 51, showcased her sculpted arms while jogging in her Brentwood neighborhood. The actress, known for her role in Alias, looked incredibly fit and toned. Garner attributes her slim physique to her active lifestyle, particularly her daily cardio workouts. She also emphasized the importance of body movement for mental and spiritual well-being. Garner has been in an on-and-off relationship with John Miller since 2018. The couple keeps their relationship private and low-key, with Miller being described as someone who avoids the Hollywood spotlight.