MadSci Network: Anatomy |
Hallo Heather, Yes, there are different types of skin, and skin types are inherited. But as well as that, people's skin changes and looks different at different stages of their life. Babies have soft, firm and very elastic skin. Old people's skin loses elastin, which is the substance that makes it flexible, so it sags, gets wrinkly and also becomes thinner, which makes it more transparent. Clear skin comes from: being healthy; being young; being old enough to have gone through and beyond the hormone storms of puberty which cause spots; eating a decent diet (less junk food/fizzy drinks, more fresh fruit and vegetables); being physically active. Strong exertion makes you sweat, sweat takes toxins out of the body, so skin gets clearer and firmer; living in a pollution-free environment. Having skin transparent enough to see the veins through it is inherited. Peoples' bodies develop over many generations to adapt them for optimum survival in the place they live in. We all need the correct daily amounts of vitamin D to prevent various bone diseases. (Too much vitamin D is toxic and causes different problems). We can get vitamin D from certain foods (egg yolks, fish liver etc.) and -- - here's the important bit --- our skins will manufacture it for us by being exposed to sunlight. I think it is possible that Amber's ancestors came from somewhere far North, where winters are long with short days, and there's not much sunlight for months on end. For instance, during November in Tampere, Finland daylight starts some time after 11 am, and it's dark again by 3 pm. People originating from that latitude need very pale, transparent skin so they can absorb the maximum amount of sunlight in the shortest possible time. Veins are bound to show through skin this fine. If you have skin this fine, it will absorb sunlight faster, so please be careful about sunbathing. best regards, Bobby
Try the links in the MadSci Library for more information on Anatomy.