Dr. Sarang Deshpande, an orthopaedic consultant at KIMS Hospitals in Thane, India, explains the consequences of lifting weights while avoiding cardio exercises. While weightlifting enhances muscle strength, it does not significantly improve cardiovascular health. This can lead to fatigue during simple activities like climbing stairs or running short distances, as the heart is not conditioned for sustained effort. Additionally, skipping cardio can slow fat loss and create a bulky appearance without definition, leaving individuals feeling sluggish despite their strength. Dr. Deshpande emphasizes that poor endurance can alter posture and movement patterns, potentially stressing joints such as the knees, hips, and lower back. To achieve better overall fitness, he recommends a combination of strength training and basic cardio exercises, which can enhance heart health, support recovery, and maintain stamina.