Intro ALREADY HAS MORE THAN 2000 STORES NATIONWIDE. >>> SUNDAY IT'S THAT TIME OF YEAR. WE WILL SPRING FORWARD FOR THE START OF DAYLIGHT SAVING TIME . IT'S A DEBATE WE HEAR EVERY YEAR, SHOULD WE DO IT OR SHOULD WE NOT DO IT? >> AT LEAST MOST OF US HAVE LIKE DIGITAL SMARTPHONES AND WATCHES AND IT DOES IT AUTOMATICALLY. YOU HAVE TO REMIND YOURSELF ALL OVER THE HOUSE. >> MICROWAVES AND ALL OF THOSE Isabelle Dass GADGETS. >> MICHAEL GEORGE'S LOOK AT THE PUSH TO DITCH IT . >> Reporter: ISABEL ISN'T THRILLED ABOUT TURNING THE CLOCKS FORWARD AND LOSING AN HOUR. DOESN'T MESS WITH YOUR SLEEP SCHEDULE? >> IT DOES MESS UP MY SLEEP . I GO TO SLEEP LATER AND WAKE UP LATER, SO I'M USUALLY LATE. >> Reporter: WITH MORE AND MORE RESEARCH SUGGESTING DAYLIGHT SAVING TIME CAN HAVE DANGEROUS AND SERIOUS EFFECTS ON HEALTH AND SAFETY, THE AMERICAN ACADEMY OF SLEEP MEDICINE IS ADVOCATING FOR YEAR-ROUND STANDARD TIME. >> ONE, IT REMOVES THE SWITCHING OF OUR CIRCADIAN RHYTHMS TWICE A YEAR, WHICH IS VERY DIFFICULT FOR OUR BODIES TO ADJUST TO. NUMBER TWO, STANDARD TIME IS ALIGNED WITH AAA OUR BIOLOGICAL CLOCK. THERE IS BRIGHT LIGHT IN THE MORNING AND LESS LIGHT IN THE EVENING GO >> Reporter: DR. JOCELYN CHANG SAYS WHEN WE ARE EXPOSED TO LESS LIGHT IN THE MORNING IT MAKES IT MORE DIFFICULT FOR US TO WAKE UP AND MORE LIGHT IN THE EVENING MAKES IT MORE DIFFICULT TO FALL ASLEEP. THE AAS M CITES RESEARCH SHOWING THE SPRING TIME CHANGE CAN LEAD TO INCREASED RISK OF MOTOR Sunshine Protection Act VEHICLE ACCIDENTS, MEDICAL ERRORS, HEART ATTACKS AND STROKES AND MOOD DISTURBANCES. SOME LAWMAKERS WANT TO INSTEAD MAKE DAYLIGHT SAVING TIME PERMANENT. THE SUNSHINE PROTECTION ACT WOULD MEAN LONGER DARK MORNINGS. >> I LOVE IT BEING BRIGHTER WHEN I WAKE UP . I'M A Experts advise SCHOOLTEACHER, SO WHEN I WAKE UP I DON'T LIKE IT BEING DARK , BECAUSE I'M DROPPING MY KIDS OFF AT IT'S DARK. >> Reporter: AS WE JUST A DAYLIGHT SAVING TIME EXPERTS ADVISE TRAN05 >> WHEN YOU WAKE UP PICTURE YOU Sleep experts ARE EXPOSED TO BRIGHT LIGHT. SEMITE IS IDEAL, BUT ANY BRIGHT LIGHT IS BETTER THAN NONE. >> Reporter: THAT WILL SET YOUR INTERNAL CLOCK TO THE NEW TIME AND HELP DU JOUR SLEEP AND ALERTNESS. MICHAEL GEORGE, CBS NEWS, NEW YORK. >> SLEEP