Science has shown that sleep disorders—deficiencies in the quantity, timing, and quality of sleep—are risk factors for cardiovascular disease (CVD). This is important as CVD remains the leading cause of death globally, as well as in the United States.

As the fight against global warming intensifies, more industries are joining the fray. In the shipping industry, this means adopting any number of innovations, including wind-aided technologies.

Aside from a miraculous case of how an Italian teenager survived for 42 minutes underwater without oxygen in 2015 or Stéphane Mifsud’s static apnea (holding one’s breath without moving) underwater world record of 11 minutes and 35 seconds in 2009, air—rather, oxygen—is something human beings can’t literally live without. 

It is early evening in Copenhagen. At the intersection where traffic crossing the Queen Louise Bridge meets Frederiksborggade Street, special traffic lights for the bike lane have just turned green, and a constant stream of bikes safely navigates the junction.

In much of sub-Saharan Africa, it is a daily struggle to collect safe, potable drinking water. And yet, rain does fall.