7 ways Jennifer Aniston makes 51 look 31

How old is Jennifer Aniston is a question we often find ourselves asking when we're having another Sunday Friends marathon. Much like Edward Cullen, Dorian Gray and Jennifer Lopez, Jen simply does not age.

Our favourite actress turned 51 in February this year and we can barely tell a difference between how she looks now compared to how she looked in her Rachel days and we want to know why.

In our quest to discover immortality, we took a deep-dive into Jennifer Lopez's beauty routine to discover how she makes 50 look 30, so we figured why not do the same for our other beloved Jennifer, to see if we can learn a trick or two from her.

From swapping coffee for a glass of celery juice every morning, to splashing her face with cold water and having infrared light therapy sessions to improve collagen production, Jennifer is as disciplined with her beauty rituals as she is with her diet and exercise routine.

We've compiled a comprehensive list of Jen's top beauty tips which cover everything from how she manages to keep her iconic hair so long, blonde and in such good condition, to the self-care and wellbeing rituals she practices to help both her mind and body stay healthy.

We can't promise you'll follow them (don't know about you but it takes all our might to cleanse our face, let alone splash it with ice-cold water 25 times), but don't say we didn't share them with you.

Now where's that celery....