Along with eating right and exercising, people should consider adding another healthy habit to their list: turning out the lights. That’s according to a new study reported in the Cell Press journal Current Biology on July 14 showing many negative health consequences for mice kept under conditions of constant light for a period of months.
“Our study shows that the environmental light-dark cycle is important for health,” says Johanna Meijer of Leiden University Medical Center in the Netherlands. “We showed that the absence of environmental rhythms leads to severe disruption of a wide variety of health parameters.”
