Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

Diet, exercise, sleep — all are fundamental to our health, but our relationship to light doesn't get mentioned as much. Now, a massive new study suggests light-driven disruption can take years off our ...

There appears to be a belief that the pandemic-inspired lockdown is making the night sky clearer and darker, and stargazing easier. Less air pollution, less light pollution, more stars. Is any of that ...

All life forms need sunlight to survive and not getting enough may impact health and well-being. There is a growing body of evidence that getting enough sunlight can promote optimum health. A new ...

As signs of incipient mortality proliferate, one of my happiest discoveries is that there are things that had occupied a surfeit of my mental energies—worries, desires, goals—that are showing ...

When he won the IBF middleweight title back in 1995, who knew that Bernard Hopkins would hold longer than any other 160 pound champ in history. Not too mention that his most celebrated title defenses ...

Diet, exercise and sleep are fundamental to our health, but so it our relationship to light. A massive, new study suggests light-driven disruption... Getting more light in the day and less at night is ...