This Microsoft worker was given the challenge of changing Emma Lawton's life – and she did that by building a vibrating watch.

33-year-old Emma has Parkinson's disease, a neurodegenerative disorder that causes her hands to shake. Being a lifelong lover of sketching and writing, the diagnosis was heartbreaking for her.

After months of research and development, Zhang finally finished designing the Emma Watch – a wearable device that contains tiny vibrating motors for canceling out the user's hand tremors.

Emma's first time using the device was aired in a BBC documentary series called The Big Fix. When she puts her pen to the paper without any shaking, she can't help but burst into tears.

Though there is currently no cure for Parkinson's disease, the Emma Watch is a huge breakthrough for dealing with its symptoms.

"I'm trying to figure out a way to move this forward, because I've got hundreds of messages from people who want the device for themselves or their family members," Zhang told Microsoft. "That's all the messages I get. I have close to 100 in my inbox, and then people contact me on Instagram, Twitter, on LinkedIn, on my blog, it's just every whichway."

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