I've always heard that EVERYONE has psychic abilities. Just that a majority choose to not listen to it...they dismiss what they hear, see or feel or think "there is a logical explanation for...".
Psychic abilities leave people that don't stay in tune with it or work with it. It's like a well built muscular body. You stop working out, you're going to slowly loose that muscle tone over time till you're left with something that looks like...me!
LOL