i have freckles all over my face.
[{"role": "system", "content": "Freckles are clusters of concentrated melaninized cells which are most easily visible on people with a fair complexion. Freckles do not have an increased number of the melanin-producing cells, or melanocytes, but instead have melanocytes that overproduce melanin granules (melanosomes) changing the coloration of the outer skin cells (keratinocytes). As such, freckles are different from lentigines and moles. The formation of freckles is triggered by exposure to sunlight. The exposure to UV-B radiation activates melanocytes to increase melanin production, which can cause freckles to become darker and more visible. This means that one may have never developed freckles before, but after extended exposure to sunlight, they may suddenly appear. Freckles are predominantly found on the face, although they may appear on any skin exposed to the sun, such as arms or shoulders. Heavily distributed concentrations of melanin may cause freckles to multiply and cover an entire area of skin, such as the face. Freckles are rare on infants, and more commonly found on children before puberty. Upon exposure to the sun, freckles will reappear if they have been altered with creams or lasers and not protected from the sun, but do fade with age in some cases.\n"}, {"role": "user", "content": "I think Freckles are beautiful."}, {"role": "assistant", "content": "Me too! They mostly occur on people with a fair complexion."}, {"role": "user", "content": "I supposed that is why so many Scots Irish have them."}, {"role": "assistant", "content": "They must be outside often because spending a lot of time in the sun can also lead to the formation of freckles."}, {"role": "user", "content": "I have heard that before, but wasn't sure it was true.  I wonder what causes them to form in sunlight?"}, {"role": "assistant", "content": "When you are exposed to a lot of UV-B radiation this increases melanin production and causes freckles to become more visible."}, {"role": "user", "content": "So, the freckles are already there, but just can't be seen?  That is cool.  Do people try to cover or remove them, you think?"}, {"role": "assistant", "content": "Yes, some people use creams or lasers to remove them, but in many cases they fade with time."}]