Every woman is in a lifelong feud with a single chin hair - and if not, well, you have that to look forward to.
For some, this is something that appears later in life, while others have been battling the strands since their early teens. Facial hair is linked to a hormone known as androgens, and so when going through hormonal changes - be it at puberty, menopause or with conditions like polycystic ovary syndrome, you may find hairs popping up along the jaw and upper lip.
