High-intensity interval training (or HIIT) has taken the fitness world by storm. HIIT workouts involve intense bursts of exercise, which allow you to exercise for a shorter amount of time, while still getting your heart rate up and boosting your calorie burn, even after your session has ended. That's why HIIT is widely considered one of the most effective workouts for burning fat.
If that weren't reason enough to try HIIT, consider this: you can also do it anywhere. While there's no end to the HIIT classes offered at gyms, there are also plenty of apps that can help you get in a quick session from home, often with little to no equipment. Here are some of the best on the market.
from POPSUGAR https://www.popsugar.com/fitness/best-hiit-workout-apps-46896610
via IFTTT