we asked cohen to chronicle a typical night. (jackie) it's 1:30 in the did not go to sleep since 2:00, so i'm a bit overtired. cohen's not alone. a new report out by the national center for health statistics finds nearly a third of adults don't get the recommended 7 hours of sleep daily. single moms had the greatest difficulty...about 40 percent (43.5%) get less than 7 hours, compared to 31% of married women. dr. daniel barone is a neurologist at ny-presbyterian weill cornell's center for sleep medicine. (jlp) what does our body accomplish when we sleep? (barone) the repair and recovery at the cellular level of every organ system that we have. //our heart's given a break, our blood vessels are allowed to relax, our blood sugar goes down. sleep deprivation can cause a lot more than just being tired. it's been linked to problems like diabetes, high blood pressure, heart disease, mood disorders, and a weakened immune system. there's even recent evidence it may contribute to dementia and obesity. (jlp ) there's no way of getting around the

jon lapook. >> 44-year-old jackie cohen is a busy entrepreneur and single mother of a 2-year-old. >> i never get 7 hours of sleep in the night. i'm going to say ever. >> reporter: we asked cohen to chronicle a typical night. >> so it is about 1:30, and it's 3:20, i did not go to sleep since 2:00, i am a bit overtired. >> reporter: she is not alone. nearly a third of adults don't get the recommended seven hours a new report out today by the national center for health statistics finds single moms had the greatest difficulty. 40% get less than 7 hours compared to 31% of married women. those are basically motion trackers. >> reporter: the doctor is at the cornell center for sleep medicine. what does our body accomplish? >> repair and recovery at the cellular level of every organ. system that we have. >> reporter: really? >> our heart is given a break. our blood vessels are allowed to relax. our blood sugar goes down. >> reporter: there is no way of getting around the need to sleep. even if you want to live every minute of your day. you still have to go to sleep. for a third of your life.

. >> reporter: 44-year-old jackie cohen is a busy entrepreneur and single mother of a two-year-old. >> i never get seven hours of sleep in a night. i'm going to say ever. >> reporter: we asked cohen to chronicle a typical night. >> i've been up since about 1:30. it's 3:20 and i did not go to sleep since 2:00, so i'm a bit overtired. >> reporter: she's not alone. nearly one-third of adults don't get the recommended seven hours of sleep daily. a new report out today by the national center for health statistics finds single moms have the greatest difficulty, about 40% get less than seven hours compared to 31% of married women. >> those are basically motion trackers. >> reporter: dr. daniel baron is a neurologist at new york-presbyterian's weill cornell ecenter for sleep. what does our body accomplish while we're asleep? >> nearly every organ is repaired. our heart is give an break. our blood sugar goes down. >> reporter: there's no way getting around the need to sleep. even if you want to live every minute of your day, you still need to sleep for about one year of your life. >> it's a gr

jackie cohen is, busy she's an entrepreneur and single mom of a two-year old. >> i never get seven hours of sleep in a night. i'm going to say, ever. >> reporter: so cbs news asked cohen to chronicle a typical night of sleep. >> it is now 1:30 in the morning and i have not gone to sleep. so i'm a bit more tired. >> reporter: forty-four year-old is not a alone, a a report by national center for health statistics finds nearly a third of adults don't get recommended seven hours of sleep daily, single moms have had greatest difficulty, 40 percent get less than one hours compared to 31 percent of married woman. cbs news correspondent doctor john lepuke sat down with doctor daniel barone a neurologist at new york presbyterian center for sleep medicine. >> what does our body a accomplish while we are a asleep. repair and recovery of the cell level of every organ system that we have. our hearties given a break, blood vessels are allowed to relax, blood sugar goes down. there is in way of getting around the need to sleep. even if you want to live every minute of your day, you still have to go to

needed for everyone's peace of mind and supervisor cohen will be announcing the details to this measure this afternoon at 1:00. back to you. >> jackie, police chief greg suhr has been scrutinized since the shooting. does he propose any changes? >> reporter: he is. chief suhr just launched a campaign called not on my watch. and the details are an effort to root out potential intolerant and racism among the sfpd. the department released this video of sharing stories of patrolling neighborhoods and promising prejudice won't be practiced on our watch. >> for those who would suggest there's anyplace for the stain of intolerance i pledge not on my watch. >> i pledge not on my watch. >> i pledge not on my watch. >> i pledge not on my watch. ♪[ music ] >> reporter: in addition to the new reforms, sfpd is reviewing its policies on the use of force. it also plans to equip officers with body cameras. so we'll keep an eye on this for sure. back to you. >> thank you. >>> it is 5:02. some bay area residents are literally living on the edge. people who live in the coastal apartments on esplanade avenue in pacifica are being warned it's too dangero

jackie single mother of a two-year-old. >> i never get seven hours of sleep in a night. i'm going to say, ever. >> reporter: we asked cohen to chronicle a typical night. >> i've been up since about 1:30. it's 3:20 and i did not go to sleep since 2:00, so i'm a bit overtired. >> reporter: she's not alone. nearly one-third of adults don't get the recommended seven hours of sleep daily. a new report out today by the national center for health statistics finds single moms have the greatest difficulty, about 40% get less than seven hours, compared to 31% of married women. >> those are basically motion trackers. >> reporter: dr. daniel baron is a neurologist at new york- presbyterian's weill cornell center for sleep. what does our body accomplish while we're asleep? >> nearly every organ is our blood sugar goes down. >> reporter: there's no way getting around the need to sleep. even if you want to live every minute of your day, you still need to sleep for about one year of your life. >> it's a great equalizer. we all need to sleep. >> reporter: sleep deprivation has been linked to diabetes, high blood pressure, heart disease, i