If Nick Santonastasso can wake-up grateful every day, what's your excuse? At 21 years old, he already holds rank as an internet sensation and fitness champion and is now making rounds as a motivational speaker whose story resonates with audiences worldwide.

What makes Nick such an inspiration?

Nick was born with Hanhart Syndrome, a rare condition that affects the development of limbs and organs. With a 30% chance of survival, Nick was fortunate that his organs were unaffected by the defect. Instead, Hanhart Syndrome deprived him of both legs and a portion of one arm—which hasn't stopped him one bit.

From voluntarily amputating the remainder of his right arm so that he could compete on the school wrestling team to waking up every day in a determined state of gratitude, Nick Santonastasso's story is nothing short of remarkable.

"I realized early on that he world isn't going to stop for me just because I was born like this," he tells Brad. "Life is fast; it's important to keep perspective."

So, we'll ask you again, what's your excuse?