I remember having thick, shoulder length and lustrous curly hairs when I was a kid. My hair were so curly that after washing and drying, all my hairs used to gather over my head instead of flowing down. My mother used to oil them and braid them in tight braids, to appease my grandfather as he used to find my gathered hair untidy. Over the years, they lost curls and became wavy (not sure of the reasons but too much of tight braids must have worked their magic) and also became thinner and frizzy.