If you’ve ever woken up and felt on top of the world it may be because you’re actually a little taller in the morning than at night. Here’s the science behind it. Business Insider is the fastest growing business news site in the US. Our mission: to tell you all you need to know about the big world around you. The BI Video team focuses on technology, strategy and science with an emphasis on unique storytelling and data that appeals to the next generation of leaders – the digital generation.