Greek-American model and social media influencer, Hannah Stocking-Siagkris who found success online on Vine in 2013 when she posted a video called ‘How girls react to guys VS How guys react to girls’ which went viral in days. Now Hannah is best known for her work on YouTube and TikTok where she uses her degree in Chemistry and Biology to breakdown and explains simply topics on her social media channels to make them more accessible to her audience.