If you’ve never heard of nature deficit disorder, don’t be alarmed. This is not a new disease sweeping the nation. Instead, it’s a term that many experts use to describe modern-day reliance on indoor conveniences. Today’s children spend so much time indoors that outdoor play is almost more of an afterthought than an essential. As a parent, it’s up to you to understand how time under the sun and stars is beneficial to your children and to know how to get them interested in the world beyond their device screen.