Tag Info

New answers tagged

2

Since your questions seems to be motivated by personal health protection, consider an alternate view, which is that not only is the sun's damage to the skin not "sufficient to warrant protection anytime I go outside or just for extended periods", but that lack of sufficient unblocked exposure to the sun may be, overall, even more harmful--not only for the ...


2

Because the website you link speaks of cancer, they probably go by the rule that a single exposure and even a single photon of UV may be sufficient to cause that one mutation in that one skin cell that will eventually lead to cancer. In the end, they are right, because mutagens (UV, cigarettes, radiation) do not follow typical toxicological rules. There is ...


11

Contrary to the other answer posted, this paper shows via microscope images that the tattoo ink is in fact absorbed into cells, and forms small intracellular round granules. Electron microscopy of untreated tattoos revealed membrane-bound pigment granules, predominantly within fibroblasts and macrophages, and occasionally in mast cells. These ...


27

First, tattoo pigment isn't injected into cells. If you were to puncture a cell with something the size of a tattoo needle, it would die - full stop. Many cells are destroyed in the process though, mostly by tearing, which initiates the wound healing process. So what actually happens is the particles lodge in between the cells of the dermis (the layer below ...



Top 50 recent answers are included