So, you're curious about the She-Hulk transformation? Buckle up! Unlike her cousin Bruce Banner's rage-fueled Hulk evolution, Jennifer Walters' journey to becoming She-Hulk is a bit different. It all started with a life-saving blood transfusion from Bruce himself after a critical injury.
This transfusion introduced gamma-irradiated blood into Jennifer's system, triggering her own transformation. However, Jennifer's personality remains largely intact in her She-Hulk form. While she does experience a boost in confidence and assertiveness, she retains her intelligence and wit. This allows her to practice law even in her green-skinned state, making her the amazing character we know and love.
While anger can amplify her strength, it's not the primary driver of her transformations or power. She has more control than Bruce initially did, which makes her transformation a fascinating and unique take on the Hulk mythos.