She describes going to the gym as torture.
"I have very good luck because I have a good figure. And when I moved to LA and decided to act, I understood that working out and eating healthier was part of ageing well so I accepted it. I hate it," contactmusic.com quoted Vergara as saying.
"For me, it is torture to go to the gym. I am in a bad mood before I am going, while I am doing it. I mean, I hate my trainer! But then it's a reality. And I have accepted it as part of my job and as part of trying to be healthy," added the 40-year-old.
Although the "Modern Family" star is happy with her looks at 40, she admits to feeling pressurised with her job, especially now that technology has advanced.
"I know I look good for 40, but it's not the same. And now with high-definition television, it's why, why? Somebody has to stop this torture!