A hairbrush plays a crucial role in maintaining 360 waves and promoting hair health. Brushing helps to train the hair to lay down in the desired wave pattern, evenly distributing natural oils from the scalp, which keeps the hair moisturized and adds shine. Regular brushing also stimulates the scalp, encouraging blood circulation, which can lead to healthier hair growth. Additionally, it helps to remove tangles, reduce frizz, and maintain the smooth, defined look of 360 waves.