Why fitness apps use calories to help you lose weight

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According to Einstein there are 644 billion calories in this doughnut.
According to Einstein there are 644 billion calories in this doughnut.
Photo: Graham Bower/Cult of Mac

Most fitness apps seem obsessed with calories. Go for a run, and your Apple Watch tells you how many calories you burned. Scan a barcode and MyFitnessPal tells you how many calories are in the food you are about to eat.

So what exactly are calories, and does counting them really help you achieve your fitness goals?

Fitbit’s pulse weakens as it gets kicked out of Apple Stores

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Apple is giving FitBit the boot to make way for Apple Watch. Photo: Fitbit
Apple is giving FitBit the boot to make way for Apple Watch. Photo: Fitbit

Fitbit’s lineup of activity trackers may soon get exiled from the Apple Store, sources have told Recode, as Apple prepares to launch its own lineup of wearables next year.

It’s unclear whether other activity trackers will suffer the same fate, but the move comes just days after FitBit announced it has no plans to support iOS 8’s HealthKit in the near future, which makes it easy for iOS users to track all of their fitness data in one app.

Nike CEO is ‘excited’ about partnering with Apple for possible iWatch

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Nike_FuelBand_SE_Volt_SingleBand_original

When Nike announced it was shutting down its FuelBand division and exiting the hardware business, many speculated that the company would be teaming up with Apple for the long-awaited iWatch.

Nike didn’t exactly do much to cool the rumors either — issuing a statement that claimed the two companies would “continue to partner on emerging technologies to create better solutions for all athletes.”

Now Nike Chief Executive Officer Mark Parker has poured more fuel on the fire, saying that sportswear company is committed to focusing on software, and is “excited” about its relationship with Apple.