Jennifer Garner took a break from her daily run in Santa Monica, California to take a phone call. 

The 51-year-old mom of three was dressed warmer than usual for the cool September morning. 

The Alias alum wore dark blue leggings and a matching sweatshirt as the strode purposely across a field.

Jennifer - who visited her family in West Virginia last week - had her brown hair pulled back and clipped up and wore sunglasses to protect her eyes from the sun. 

The 13 Going on 30 actress looked all business as she went about her morning routine. 

Jennifer shares Violet Anne, 17, Seraphina Rose, 13, and Samuel, 11, with her ex-husband, Ben Affleck, 51.

The Elektra star has an impressively toned and sculpted figure and looks even better at 51 than she did when she was playing Sydney Bristow on Alias in her 20s. 

She leads an active lifestyle and credited that as the reason for her sensational figure during an appearance on The Drew Barrymore Show in April.

'What I do in the morning is I work out,' she told host Barrymore, who looked surprised, and replied: 'Every day?! Oh God.'

Jennifer insisted that 'hard cardio' is the key to staying trim and fit. The star believes that daily body movement is also incredible for the mind and spirit. 

Earlier this week, The Last Thing He Told Me actress took a trip home to Charleston, West Virginia to visit her family. 

She also treated her father William to an early 85th birthday present - a ride in his childhood car, a 1948 Studebaker Champion. 

While she keeps busy with her kids, she also makes a little time for romance with her on/off relationship with John Miller, 41. The two have been linked since 2018.

Garner and Miller keep their relationship low key and under the radar.He is an attorney and the CEO of CaliBurger, a burger restaurant chain with 50 locations.

'She loves how little he cares for the limelight or the whole Hollywood scenester stuff,' a source told Us Weekly last year.