Celebrity workouts can sometimes feel unattainable for the average person, but many celebrities face the same time pressures as us and have to fit a workout into the time they have available. Case in point is Jennifer Aniston, who recently launched Jen’s Express Series: Arms & Abs through her partnership with fitness app Pvolve. There are six workouts in the series, all under 15 minutes, and they feature many of Aniston’s favorite upper-body and core moves. It’s taught by her personal trainer Dani Coleman, who is also the vice president of training at Pvolve. You may like “When we have time together, we might do a longer session. But other days, especially when she’s short on time, she fits in a quick 15-minute workout like the ones in the Express Series,” Coleman tells Fit&Well. “She focuses on workouts that make her feel strong and energized, which naturally makes consistency easier,” Coleman adds. For a flavor of what to expect, Coleman shared the 15-minute core workout below, which uses the Pvolve P.ball, the brand’s take on …