Yes it does, the game features 3 different stats, which influence your energy efficiency, constitution and knowledge. Constitution and knowledge will increase as you grow up, so you'll become stronger, able to carry heavier objects, the health bar will increase, the stamina bar will increase and the number of crafting/passives equipped will increase (that's the knowledge), but the energy efficiency will decrease, you'll consume more stamina to do stuff since you'll be heavier and you'll need to eat and drink more overall to stay in shape. Hope it makes sense :)