I tried a WiFi hairbrush--and I wish I had one years ago

USATODAY - Tech Top Stories 

CES always yields divisive new products, and this year's "smart hairbrush" might have you asking, "Are you serious, tech companies? Why do we even need this?" But as someone who struggled for years to repair damaged hair and learn how to take care of it, this product seems perfectly logical to me. My hair may be a thing of glory today, but it wasn't always. Growing up, I always wanted long hair.