Human beings have an intrinsic and powerful connection to sunlight that evolved over thousands of years. Before the advent of electricity we were bound by the constraints of daylight, and our sleep cycles followed suit. But today, electricity and technological stimulation allow our minds and bodies to be active after sundown, which can wreak havoc on our health. Many hormonal processes in our body are literally hardwired to be orchestrated by sunlight and the absence of sunlight. It is no surprise that adhering to a normal sleep pattern is therefore highly important to maintaining optimal health.