Height Growth: Complete Evidence-Based Guide to Growing Taller | GrowWell GW Height Growth: Evidence-Based Guide to Maximizing Natural Height Nutrition • Sleep • Exercises • Posture • Medical guidance — Read time: ~9 min Height Growth: Practical Steps Backed by Science Height growth is primarily determined by genetics, but environment, nutrition, sleep and physical activity play important roles — especially during childhood and adolescence. This long-form guide explains how to support bone density and hormone balance (including human growth hormone and insulin-like growth factor, IGF-1), what evidence-based interventions exist, and safe next steps if you suspect delayed growth. How height growth works (brief biology) Growing taller depends on the growth plates (epiphyseal plates) at t...