With a seemingly infinite amount of fitness advice out there, it’s vital to sift through the noise and focus on evidence-based and science-backed information. The purpose of physical activity goes beyond weight loss or hypertrophy (increasing muscle size) — it’s an investment in overall wellness, a potent tool for mental health, and a route to enhance longevity and healthspan. Fitness frameworks, from high-intensity workouts to low-intensity regimes, can be tailored to an individual’s fitness level, age, sex, fitness goals and lifestyle.