Fearsomely fit female celebs over 40

Jennifer Lopez - Jennifer Lopez entered her fifties looking even fitter and stronger than she did in her twenties.

Charlize Theron - Charlize Theron may be in her forties, but she's fitter than many women half her age.

Sarah Jessica Parker - Leggy SJP has always had killer pins, and she wasn't about to let that change when she entered her fifties.

Gillian Anderson - Gillian Anderson is another star looking incredible in her fifties.

Nicole Kidman - The Australian actress never seems to age, and she attributes her fit physique to regular running, spin classes, yoga, and an active, sporty lifestyle with her family.

Shakira - Shakira's hips certainly don't lie: you need to be in tip-top shape to move like she does on stage.

Courtney Cox - A keen runner, Courtney Cox never seems to age, even as she edges closer to 60.

Elizabeth Hurley - Elizabeth Hurley is famous for her envy-inducing physique, but insists she isn't a slave to the gym.

Kourtney Kardashian - Kourtney Kardashian looks so youthful that it's easy to forget she's in her forties.

Gabrielle Union - Actress Gabrielle Union is a real gym bunny, and throws resistance bands, kettlebells, and a whole lot of weighted squats into her regular workout mix.

Jennifer Aniston - Jennifer Aniston is the poster girl for looking incredibly fit and fabulous in your fifties.

Sandra Bullock - Aniston's buddy Sandra Bullock is another workout fiend who looks fitter than ever in her fiftie

Sigourney Weaver - It takes some strength to do battle with aliens, and actress Sigourney Weaver has looked in awesome shape her whole career.

Christie Brinkley - Former supermodel Christie Brinkley was a Sports Illustrated regular in the '80s and '90s, and returned to the cover in 2017, aged 63.

Eva Mendes - Eva Mendes regularly shares workout pics on her social media, and is a big fan of interval training to keep in fabulously fit shape well into her forties.

Heidi Klum - Heidi Klum has supermodel-level genetics on her side, but she also knows the power of moving her body to keep her looking fabulous for life.

Victoria Beckham - Being married to a former soccer star might help Posh Spice find extra impetus to push her fitness levels.

Kate Hudson - As the founder of fitness wear company Fabletics, it's no surprise that Kate Hudson is in seriously good shape.