Is Your Hair Texture Changing?
Whether you were born with fine or thick, curly or straight strands, the texture will probably change over time. While factors like pregnancy, stress, medications and health issues can play a role in why hair texture varies, age is the biggest factor.
As your skin ages, so does your hair. The bulb is surrounded by a sheath of collagen, which connects to micro-vessels that deliver necessary nutrients for thick, shiny hair. With age, the delivery process slows down, which noticeably affects your hair in terms of strength, shine and growth.
Once hair begins to change, which can happen at any stage in your life (or not at all), it's most likely going to stay that way.