On TikTok, workout tips abound — some credible, some dubious. And recently, you may have been hearing about something called sprint training, which falls somewhere between 12-3-20 treadmill workouts ...
If you want to work out, there's never a shortage of options out there, like dancing for cardio or teaming up with a partner. One method you'd probably heard of is interval training: short bursts of ...
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