HIIT training is a system of high intensity exercises. This exercise method is popular among people who want to quickly melt excess pounds, but these exercises also help slow down the aging process.
The philosophy of this system is to do exercises quickly with short intervals of pause, so with that intensity you burn more calories in less time, compared to traditional exercises.
HIIT training stimulates the work of metabolism, fat burning and muscle building, and scientists at the Mayo Clinic claim that they can slow down aging. They published the results of their research in the journal Cell Metabolism.