"I love being physical and acting at the same time"

Jennifer Garner is expressing her love for both exercise and acting. She is most likely referring to the physicality of her functions, such as stunts and battle scenes, in addition to the emotional and psychological challenge of embodying a character. She is likely describing the joy she discovers in the mix of physical and mental obstacles that acting offers. She is likewise likely referring to the physicality of the craft, such as the long hours on set, the physical demands of the function, and the physicality of the efficiency. Jennifer Garner is revealing her appreciation for the unique combination of physical and mental obstacles that acting offers. She is likely referring to the pleasure she finds in the combination of physical and psychological challenges that acting supplies. She is also most likely referring to the physicality of the craft, such as the long hours on set, the physical needs of the role, and the physicality of the performance. Jennifer Garner is expressing her love for the distinct mix of physical and psychological difficulties that acting supplies.