When you experience a significant growth spurt, like what’s claimed with the 8 inches powder, your body’s metabolism and organs do have to adapt. The growth process typically involves increased nutrient and energy demands. Generally, the body adjusts to these changes through enhanced nutrient absorption and metabolic shifts to support rapid growth. However, the specific mechanisms can vary from person to person. Rapid growth can indeed cause the skin to stretch, which might lead to stretch marks. The skin’s elasticity plays a big role here, and some people may be more prone to developing these marks than others. Using moisturizers and maintaining skin hydration can sometimes help mitigate this. While it’s true that organs need to be proportionate to body size, the human body has remarkable ways of adapting. In general, organs don’t increase in size proportionally with height but rather adjust functionally to meet the body's needs. For instance, the heart and lungs can adapt by becoming more efficient. However, this adjustment process takes time and is complex. The body often manages these changes gradually. If the growth happens at a reasonable pace, the organs typically adapt well over time. Sudden or extreme changes might pose risks, so it’s crucial to monitor any health changes and consult with a healthcare professional.