Permanent daylight savings may cancel out changes to school start times and undermine efforts in many states to give teens more time to sleep in by pushing school start times back, suggests a new study.

Permanent daylight savings may cancel out changes to school start times and undermine efforts in many states to give teens more time to sleep in by pushing school start times back, suggests a new study.: http://bit.ly/2L4FyP8 Read more... http://bit.ly/2UPRXuY