@this is clark powell, reporting @this is clark powell, @reporting. @>> experts say schools that @moved start time back improves @tardy @tardiness and graduation rates. @it doesn't mean home schooled @are better students but they're @more rested. @>> when i sleep 7, 8, hours @like they say, i know that i'm @more focused and more alert. @i mean -- @>> happier. @>> exactly. @>> kid enjoy the sleep when you @can have it. @>> no, no, especially when you @go from day side to morning to @night side we've all done that. @>> good night of sleep is @achievement. @>> with the way the weather is @get out of bed early. @>> you don't want to sleep in @with this paerm weather. @here's a great day. @sun wept down about 1 is 4 @minutes ago now. @look outside. @temperatures 66 degrees. @winds northwest at 8 miles an @hour. @let's head to the beach. @check it out. @clearwater hilton beach cam @nice end together day out there @as well and cooler at the beach @as well and cooler at the @beaches 64 right now and winds @coming out of northwest at 13 @miles an hour. @almanac for today, how about 72 @for the h

@clark powell has more on the @story. @>> reporter: only after therapy @that kalen jones thought he coo @fully function. @for years his alarm went off at @6 but for hours his mind @struggled to get up. @>> i would go to school and be @the came like other kids that @were bleary-eyed an kind of @like -- when -- why are we here @at this time. @ i don't want to be here. @>> reporter: not an uncommon @attitude for teenagers but may @not entirely be their fault. @experts say dry as they might, @teenagers simply can't fall @asleep as early as others. @>> not just that they don't @want to or have a lot of @activities or facebook and @well, but they can't fall @asleep earlier anymore. @>> reporter: a sleep @psychologist at national jewish @health in denver. @the production of melantonin, @the hormone that helps regulate @our speech shifts by two hours @in teenagers. @because of that they need to @sleep later in the morning and @most public and private schools @don't athrough. @so to see how that impacts @teenagers, she compared typical @students to those who were home @schooled. @what they found

@this is clark powell reporting. @>> anjuli: experts say schools @that moved start times back @report less tardy @report less tardiness among @teens and higher graduation @rates too. @they inist that the study @doesn't mean that those who are @home school ready better @students necessarily but they @are well rested. @>>> another presidential @candidate dolls quits, plus the @democrats gear up for another @big debate in flint, michigan. @>>> scientists say they @discovered what might be a new @species of octopus while @searching the pacific ocean @floor. @>>> hey, lindsay. @>> lindsay: hey, lloyd, good @morning, good to have you with @us at 7:43. @a beautiful start of the day. @a cool start though. @we are near 60 in st. pete, and @looking east toward tampa. @high clouds have moved in from @the gulf while we were sleeping @sleeping. @lakeland showing those high @clouds at 50 degrees. @make sure you have the jacket @it. @look at the weekend. @mid-70s early next week and @pushing 80s. @that lasts with the spring @ @retired neurosurgeon ben carson @has dropped out of the @presidential rac