How old do you have to be to be the oldest person in the world? 114 is the magic number, as of Wednesday anyway when 115 year old Emiliano Mercado del Toro passed away in Puerto Rico. According to the Connecticut Post, Emma Faust Tillman, at 114 years old, is now the oldest person in the world. Ms. Tillman never smoked or drank, and the article doesn't say specifically but it doesn't sound like she was ever married or had any children. Genes may also be helping her out, as her siblings lived to 108, 105, and 102 yrs old.

There are all kinds of theories on why some people live so long and how the rest of us can do it too. Is it lifestyle? Geography? Or even how old your mom was when she gave birth to you?

I get a headache just thinking about it.