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": "assistant", "content": "Man I have freckles clustered all over my face...  they're melaninized cells and very noticable!"}, {"role": "user", "content": "I have alot of freckles too. Ive always heard it was because I was Irish."}, {"role": "assistant", "content": "Yeah? People sometimes think they're moles, but thy are different than these and lentigines. "}, {"role": "user", "content": "Interesting. What are lentigines? Also what the difference between freckles and lentigines?"}, {"role": "assistant", "content": "They are a small pigmented spot with a different pigment and a defined edge. They're harmless though!"}, {"role": "user", "content": "I was told growing if you had alot of moles it was a sign you might have cancer. Is that true?"}, {"role": "assistant", "content": "Moles should definitely get checked regularly by a dermatologist, just to be sure. Freckles on the other hand just produce more melanin in the sun and get darker."}, {"role": "user", "content": "Thats good to hear. I have alot of freckles but my wife has them all over her face and she hates it."}]