(WECT) - Father plus daughter plus math equals recovery in this story of miracle mental arithmetic.
A teenager in Britain woke up from a five-day coma after her father asked her math questions, though Viki Alex doesn't remember any of it.
"Thought something like talking and singing is supposed to wake you up, although with dad's singing, I'm not too surprised it didn't," said Viki.
Math equations was the key to waking Viki - they're what she's been doing best since she was first able to walk and talk.
"My dad and I've been doing that since like before school so I don't know it's always been one of my strong subjects, that's one of the things they test me on all the time," said Viki.
So, the family found themselves celebrating around Viki's hospital bed after a basic math question brought her back.
"I asked her what one and one is and I said did you say two, and then she nodded so I got a very positive response back," said her father Nick Alex. "I asked her another question and got another positive response, but then I said she doesn't like English - so I said I'll ask her an English question and she shook her head which was the right response because she doesn't like the subject."
The 15-year-old is recovering from Leukemia. She's in quarantine and says she has plenty more time to study.
"They said the prognosis is good, that means I have a good chance at survival and they said it normally takes six months to get six rounds of chemo," said Viki.
Research on the physical results of thinking has shown that just using the brain actually increases the number of branches that interconnect brain cells. The more we think, the better our brain's function.