To inspire you off the sofa and into the gym, here's a video round-up of six of the nation's favourite celebrity fitness trainers.
Throughout her career, Jane Fonda has achieved tremendous success in acting and fashion modelling, as well as fitness instruction. Her first fitness video was released in 1982.
Better known as "The Green Goddess", Diana Moran had success in the 1980s with her exercise segment on BBC's Breakfast Time.
Lizzie Webb, aka "Mad Lizzie" was another TV breakfast show star, with a slot on ITV's TV-AM in the eighties.
And here's yet another breakfast TV fitness star - Mr Motivator made his name with his brightly coloured outfits on ITV's GMTV in the 1990s.
The noughties brought us TV presenter Davina McCall, who has managed to build and maintain credibility as a fitness star alongside her day job.
And finally, there can't be many Brits who haven't seen Shaun T and his Insanity workout infommercials.
His high intensity fitness plan promises a complete body transformation in just sixty days - if you can handle it.
Lose weight & save pounds
Did you know that losing weight can also save you pounds in money as well? When it comes to life insurance it can.
How? Well, when it comes to life insurance, weight matters, or rather, your body mass index (BMI) matters.
Simply put, your BMI is a measure whether you're a healthy weight for your height.
You can calculate your BMI by dividing your weight in pounds by your height in inches squared, or try the BMI calculator on the NHS website here.
Why BMI matters
Insurers take your BMI into account when calculating your life insurance premium, and if yours is high then you'll pay higher premium as a result.
Matt Lloyd is head of life insurance at Confused.com.
He says: "A BMI score of 30 or more is considered obese which puts you at an increased risk of health problems such as heart disease and type 2 diabetes."
"Statistically the higher your BMI the shorter your life expectancy so this will result in a higher life insurance premium."