India, May 20 -- American actor-producer Jessica Biel opened up about the key to her strong marriage with singer-actor Justin Timberlake, highlighting how having a partner who understands the demands of their industries has been crucial. Speaking to InStyle, the 43-year-old reflected on what it's like to balance family with two thriving careers.

"I think having a partner who understands this industry and adjacent industries like music industry has been really deeply important and profound for my life and for our partnership because he just understands when I'm working crazy long hours," she shared.

On the flip side, Jessica explained that she returns the same level of understanding to Justin when his schedule gets hectic. "Works all nig...