Here, we are going to look at what fitness is and the several key components of fitness, types of fitness. 1. WHAT IS FITNESS?: Fitness is the condition of being physically healthy and capable of performing daily activities with energy, strength, and endurance — without feeling overly tired. In simple terms: Fitness = the ability to move, work, and live well — both physically and mentally. 2. TYPES OF FITNESS: There are two main types of fitness, which are:- 1. HEALTH 2. SKILL