There's a reason why many of us adopt a certain pose the moment a camera is wheeled out, right?

After agonising over past snaps which cast us in an unflattering light or highlight our perceived flaws, many of us have perfected a pose which showcases our best side and accentuates our attributes.

And while we know it's ridiculous to rely so heavily on that one pose, we also know how quickly a night can go downhill when we catch a glimpse of ourselves on a friend's camera looking nothing like we thought when we left the house half an hour earlier.

Reminding the public that some camera angles, certain poses and particular positions will always cast the body in a less flavourable light, personal trainer Jen Widerstrom has shared a splitscreen shot of herself taken 120 seconds apart.

Looking vastly different, Jen wrote: "Oh oh it's magic, you know. We all look like this when we sit."

"Don't stress about the way your body looks in certain positions. These photos were taken 2 minutes apart," she added in the post which has clocked up more than 20,000 likes.

Acknowledging the importance of the post, one of Jen's followers: "Thank you for showing this. Don't let it be the last time. We need this reminder over and over again."

"Really put it in perspective for me as does the other pose as I'm terrible for getting on myself for roll," added another.

Props Jen, props.