Tomás Reinholt

Diagnosis matters more than willpower when both partners have dropped off together.

Accountability between partners beats any smartwatch for sticking with fitness goals.

Having another person watching increases fitness goal success to 95 percent.

Social pressure from one real person beats motivation from an app alone.

Group accountability creates diffuse pressure while one-on-one partners forge direct obligation.

Regular, scheduled check-ins work best when they stay supportive rather than supervisory.

Pick your split based on available training days before choosing any exercises.