Sun. Tanning beds are nasty. My sister got a 1 tan and it caused some weird sores, and there was a shade of red near every joint, (Elbows, Knees, etc.) so I would say the Sun! Either use sunscreen or something for shade! Sunburn is not a major problem either. Enjoy the Sun!
-Nightmare7
Hmm, I don't really know... I'm guessing it's all about what its made up of. Like .... Let's say an apple or fresh fruit. It's made of ingredients that smell good! Then... I'm guessing it triggers your nose or brain, and almost tells you like a computer.
-Nightmare7