How Non-Athletes Can Benefit from Training Zones

An enjoyable way you can get the most out of exercise — it involves humming.

Photo by Andrea Leopardi on Unsplash

Bio-hackers and influencers, baring their abs, entreat us to do high-intensity interval training, also known as HIIT. If it has worked for them, it will work for you. If it is not working, you are not doing it properly, or you are not committed enough…