Foods that will increase melanin production; darker tan, reverse skin damage from the sun. don't care about the tan part, but reversing or decreasing skin damage from the sun naturally is VERY interesting to me.
Click through and it has a step-by-step on how to build a mind palace. I found this completely fascinating. Totally awesome, though I don't know if I could actually build one.< too lazy to read the whole thing, but it looks awesome