Jessica Biel has shared the secrets behind her famously toned back and arms in a social media video featuring her personal trainer, Ben Bruno. Bruno, who has worked with celebrities including Kate Upton and Naomi Campbell, explained that Biel’s routine is not split into separate muscle-group days but consists of full-body workouts.
In the video, Biel performs exercises such as squats, sitting pull-ups and crunches. Bruno noted that she prefers challenging workouts over lifting extremely heavy weights, so they incorporate variety to keep her sessions effective and fresh. Each workout typically includes one exercise for the back and biceps, one for shoulders, and one for triceps, alongside leg and abdominal moves.
Bruno emphasised that maintaining a super-toned physique year-round is unrealistic. Biel works out consistently but without excess, and intensifies her training for a few weeks only when necessary for a role, such as her part in the Prime Video thriller The Better Sister, co-starring Elizabeth Banks.
The actress expressed gratitude to Bruno in the video’s caption, and fans—including actress Christina Milian—praised her strength and flawless form. The Better Sister, released in May, follows two sisters navigating family turmoil after a murder.



