The 33-year-old midfielder, who joined the club from West Ham ten years ago for £11m, believes he still has a few years left at the top level.
"I think the age thing has changed," Lampard told The Sun. "People are pretty quick to write you off once you get into your 30's but they have proved to be a lot of players' best years.
"Ryan Giggs was outstanding against us in the Champions League quarter-final last season - and in a lot of other games - at 37-years-old.
"If you look after yourself, keep motivated, which is very important, know your body, do the right things and manage yourself well, then you can certainly have your best years in your 30s."