Shaun Weekв„ў — Insane Focus

: Integrated abdominal work throughout the cardio sequences to stabilize the body.

: Because of the high intensity, drink water in small sips during the brief breaks. SHAUN WEEKв„ў Insane Focus

: 30 minutes of high-intensity interval training (HIIT). Equipment : None required (bodyweight only). : Integrated abdominal work throughout the cardio sequences

The "Insane Focus" routine centers on several key athletic principles: SHAUN WEEKв„ў Insane Focus