Fitbit is a great app to track calories. I used at the beginning of my fitness journey. You might have heard of MyFitnessPal. It's a great app to track your macros. It's good to know that you adopted HIIT. That works really well. Cardio is good for your health and also if you want to stay lean throughout the year.
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Looking forward to your progress. Thanks for sharing :D
yeah for sure, i use that too! its a great way to measure everything! ill have to try!!