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Many people love shedding those few extra layers around the middle or pounds ahead of beach season. No matter your reasoning for wanting to ditch some lbs, do you actually know where all that mass you lost goes? Turns out, neither did a lot of doctors, dietitians and other experts with SciShow asked them that same question. The answer? You actually exhale it, which could lead to the question…does breathing help you effectively lose weight? We aren’t sure, but watch this entertaining video from SciShow to see their explanation—and why we should continue to love the act of sweating.