time is very important in this show, but we still don't know how or why.

time doesn't travel for people on the island. some don't grow old, some don't grow beards, some don't need haircuts and some don't even lose weight or gain weight. yet, if they get hurt they heal quickly and if they have a disease they are cured (sometimes).

but i don't know, if you look at the individual characters, some of these rules apply, but then some don't. it's hard to determine the rules