Researchers have found evidence that a 15-minute cold shower can burn up to 62 calories, the equivalent of an orange, reported 24NewsHD TV channel. 

The experts give six other ways for burning calories without breaking a sweat. 

Jumping in a cold bath 

The experts opined that exposure to cold temperatures, such as in the form of a shower or bath, can speed up your metabolism. 

Aside from beating the bulge, cold exposure therapy is also believed to help improve your quality of sleep.

One way it does this is by forcing the body to burn extra calories just to maintain its core temperature, experts say.   

Cleaning the house

Very few of us enjoy household chores. But vacuuming can help you keep fit. And the harder you work, the more you'll burn. 

It is one example of non-exercise activity thermogenesis, or NEAT — the energy you burn by the movements made going about your daily lives.

According to a 2021 report by Wren Kitchens, cleaning your house or flat, equates to 3,976 calories a month — the equivalent of 3,340 burpees.

Eating celery 

Tales that celery has special weight-loss powers have long had dieters reaching for a stick. 

Nutritionists have described the concept of negative-calorie food as plausible but, in reality, a myth. 

For example, one study in 2012 found there was a tiny surplus from eating 100g of celery, amounting to just two calories.   

A 2004 study published in the Journal of the Academy of Nutrition and Dietetics also found people given free reign at an all-you-can-eat buffet consumed up to 12 per cent fewer calories if they ate a salad beforehand. 

Fidgeting 

Great news for those that can't sit still. Forget dieting or weight lifting, try fidgeting instead. 

For life's fidgeters are natural-born weight losers, according to scientists. 

Multiple studies have confirmed that fidgeting throughout the entire day can burn up to ten times more calories than just sitting still. 

Going food shopping 

Hitting the shops needn't just exercise your wallet.

Pushing a trolley up and down the supermarket aisles will also burn 243 calories per hour, according to experts at TriHealth, a US based health system. 

That means doing the weekly shop could help you burn the equivalent of three chocolate chunk cookies. 

Research also shows that the simple act of walking for at least 30 minutes every day can help lower blood pressure, strengthen muscles and boosts immune function - another reason to ditch ordering your food shop online.  

Chewing gum 

Chew to thwart snacking, research indicates. 

The evidence suggests it may help speed up your metabolism, as the process of chewing and digesting uses extra energy. 

A study in 30 young adults, found chewing gum for 20 minutes after each meal increased metabolic rate, even through the night.

And it may be even better for your health than Nordic walking, the team concluded.