Image courtesy of Flickr   ASK THE DOCTOR: I have noticed that my hair is thinning, what could be some causes of this and what supplements would you recommend?   Incredibly, the scalp has approximately 100,000 hairs with new hair continually emerging. We tend to lose an average of 50 to 100 strands a day; however, hair loss and thinning are much more common then most people believe with many causable factors playing a part: genetics, hormone levels, thyroid, stress, malnutrition, pulling hair in tight pony tail everyday and over- processing of hair. For women, hair thinning is primarily due to stress and fluctuating hormone levels.   Everyday stress…