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Fasted cardio is having a moment. Wake up and get your exercise in before breakfast, so the theory goes, and your body will be forced to burn fat, because there will be no food in your stomach to use for fuel. But does fasting before a workout actually make a difference to your weight, or your health? Not the way you’d think. Let’s take a look at the science.What is fasted cardio? “Fasted” cardio doesn’t require some kind of extreme starvation protocol. It just means doing cardio when you haven’t eaten recently. The most common way to do fasted cardio is to work out first thing in the morning, before breakfast, since you’ve been fasting all night. (The word “breakfast” even comes from the fact that the first thing you eat is breaking your fast.)Cardio refers to any movement you can do rhyt...

We may earn a commission from links on this page. Deal pricing and availability subject to change after time of publication. Finding a pair of noise-canceling headphones that balance performance and affordability can be difficult, especially if you have a premium brand like Sony in mind. The Sony WH-CH720N headphones, however, seem to largely fit the bill. Right now, they’re at their lowest price ever ahead of Prime Day, down 51% to $87.95 (originally $179.99). These headphones were already a great buy at their MSRP, but now, they're even better. At 6.7 ounces, the WH-CH720N are Sony’s lightest and slimmest wireless noise-canceling headphones. The ANC is reliable at reducing high-frequency noise, but doesn't perform as well blocking low-frequency sound, t...