The most interesting discoveries often begin with a simple realization: the obvious explanation isn't always the right one. Neuroscience suggests the way we consume information can reshape how we pay attention, think, and learn. We say the dog sleeps next to us because the bed is warm. Like Cats and Dogs explains the evolutionary reasons behind dogs sleeping in the big bed, namely to rest and protect. Why Your Dog Sleeps Next to You (It's Not What You Think)The biggest challenge of retirement isn't usually financial.