What is 12-3-30, the viral Tiktok workout?

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If you use Tiktok, you may well have seen videos of people walking on a treadmill at a steep incline. Many of them claim to have lost weight and improved their fitness, all thanks to the 12-3-30 workout. If you’re thinking those are some oddly specific numbers, you’re right. The method involves walking on a treadmill that is inclined at 12%, for 30 minutes, at a speed of 3 mph. That's it. No running, no jumping, no fancy equipment. Just walking.  Where does the 12-3-30 workout come from? Is 12-3-30 suitable for everyone? Is it really effective for weight loss? In under 3 minutes, we answer your questions! To listen to the latest episodes, click here: Where does Father's Day come from? What is retinol, the miracle anti ageing skincare treatment? What is the best time of day to take a shower? A Bababam Originals podcast written and realised by Joseph Chance. In partnership with upday UK. Learn more about your ad choices. Visit megaphone.fm/adchoices