Doctors Say We Should Let Students Sleep in Longer


Here’s a scientific suggestion most kids will be pleased with: doctors say school should start later so students can sleep in.

In a new statement in the journal of Pediatrics, the American Academy of Pediatrics says “chronic sleep loss has increasingly become the norm” for kids. Their pathological tiredness is so bad, it’s comparable to that in people suffering from actual sleep disorders. Indeed, more than 85% of America’s high school students are walking around with less than the recommended 8.5 hours of sleep on a day to day basis. And constantly having heavy eyelids can lead to snoozing when kids should be learning. Nearly 30% of students say they fall asleep during school every week, according to one poll by the National Sleep Foundation. For older kids, there’s an added danger of nodding off at the wheel. On top of all that, kids are turning to stimulants like coffee or taking prescription drugs to combat their exhaustion.

But believe it or not, most teens aren’t a bunch of lazy bones by choice. When we hit puberty, we become night owls thanks to a delayed release of melatonin, the chemical in our brains that controls our sleep cycles. As a result, our bodies want us to go to bed and wake up about two hours later than before. This can be a difficult adjustment for kids who don’t feel the pull of sleep until midnight and then have to rise at 6:00 in the morning to get to school an hour later, but that’s exactly what’s happening.

This is exactly why doctors are now urging schools to delay their start time until after 8:00 am to accommodate kids’ natural sleep cycles. Right now, only about 15% of all high schools start after 8, but a handful are heeding the doctors’ advice, and it’s paying off. Research published earlier this year from the University of Minnesota in St Paul showed that later start times improve grades, test scores, and lower teen car accidents by a dumbfounding 65 to 70 percent.

So just how late could start times get? “Anything is better than 8 am,” Russell Foster, a professor of circadian neuroscience at the University of Oxford, told New Scientist. “Moving to 8:30 will make a difference, but a 10 o'clock start would be even better.”

Justin Tallis, AFP/Getty Images
Stones, Bones, and Wrecks
8 Cemeteries Unearthed at Construction Sites
Justin Tallis, AFP/Getty Images
Justin Tallis, AFP/Getty Images

The people who lived before us are often just beneath our feet, even if their tombs are sometimes forgotten. Lost under urban development, they are rediscovered when a subway, building, or other structure claims the ground for progress. Here are eight burial sites that came to light in this unconventional manner.


The construction of Rome's subway has unearthed everything from a 2nd-century home decorated with mosaics and frescos to a 2300-year-old aqueduct. The San Giovanni station, slated to open in 2018, will feature displays of artifacts found during its excavation, such as Renaissance ceramics and the remains of a 1st-century agricultural fountain.

Back in 2016, extension work on Line C ran into a 2nd-century military barracks with 39 rooms, likely used by Emperor Hadrian's army, as well as a mass grave of 13 skeletons. The dead may have been members of the elite Praetorian Guard, protectors of the Roman emperor. Investigations are ongoing, although officials have planned for the barracks to be incorporated into the station architecture. Its opening date remains in limbo as archaeological finds continue to slow its construction.


In 1991, construction of a federal office building revealed a colonial-era burial ground in Lower Manhattan. The graves, dating back to the 1690s, had been lost due to landfill and development, yet were identified as part of the African burial grounds that in the 17th century were located outside the old city.

Banned from interment in white cemeteries, free and enslaved Africans and African Americans had established a place to give respect to their dead, with an estimated 10,000 to 20,000 burials. Thanks to grassroots activism, including protests against continued construction, the site is now commemorated with the African Burial Ground National Monument, which opened in 2006.

It's not the sole black cemetery to be buried under development in New York: The Second African Burial Ground, dating from the 18th and 19th centuries, is located below today's Sarah D. Roosevelt Park on the Lower East Side; and in East Harlem, a 17th-century slave burial ground, discovered by construction workers at a bus depot, awaits a planned memorial.


Burrowing deep under London, the ongoing Crossrail commuter rail project has exposed obscure layers of the city's past—and a treasure trove of history. Along with medieval ice skates and a Tudor bowling ball, archaeologists have identified two mass graves. One has 13 skeletons of people who probably died in the 14th century of Black Death (with DNA on their teeth still holding the plague bacterium Yersinia pestis); a larger site has 42 skeletons of victims of the Great Plague of 1665. The study of the Great Plague skeletons, excavated in 2015 by Museum of London Archaeology, similarly showed traces of the disease in their old teeth. (Luckily the bacteria is no longer active, so no need to dust off your plague doctor beak mask.)

While such "plague pits" have long been rumored—some urban legends say the London Underground had to curve to avoid messy heaps of bodies—study of the sites indicated that there was in fact great care taken with the deceased. The bodies were placed in individual coffins, giving them some dignity even in this hasty mass burial.


Sometimes, to borrow a line from Poltergeist, people only move the headstones when relocating a cemetery, and stray bones and coffins are left behind (digging up the dead is generally unpleasant work). That seemed to be the case with a graveyard unearthed at a construction site on Arch Street in Philadelphia in March 2017. The dozens of coffins that were discovered are believed to be part of the First Baptist Church Burial Ground, established in 1707 and supposedly moved to Mount Moriah Cemetery in 1859. The Mütter Institute spearheaded a crowdfunding campaign for analysis and reinterment of the bones, and volunteer archaeologists convened at the site, racing against time to map the grounds and remove the burials of more than 100 people. Their remains were carefully analyzed.

Archaeologists subsequently found the remains of more than 400 people at the site as construction went on in other areas. Building at the site continues, as does the grassroots-funded research on the bones (you can follow the team's progress at the Arch Street Bones Project website).


In 2013, construction on a subway in Thessaloniki, Greece, turned up the grave of a woman buried around 2300 years ago. The Early Hellenistic lady was interred with a gold olive branch wreath.

Surprisingly, this wasn't the first such skeleton found during subway construction to be so regally crowned. In 2008, another Hellenistic woman was discovered with four gold wreaths and gold earrings in the shape of dogs' heads, all indicators of wealth and respectability—something marred a bit by the sewage pipe that had wrecked part of her grave.


While digging a trench in 2013 for a gas pipeline in Saskatchewan, Canada, a contractor noticed bone fragments in the soil that turned out to be 1000-year-old human remains.

Construction was halted so First Nations elders and archaeologists could examine the area. Ultimately, the pipeline company opted to tunnel deeper to avoid disturbing the ancient burials.

It was only one of many instances of massive infrastructure projects coming in contact with pre-colonial burial grounds. In 2017, for example, road construction in Duluth, Minnesota desecrated graves when the state's department of transportation failed to evaluate the area for artifacts prior to breaking ground.


Near Weymouth in Dorset, England, a mass grave of more than 50 young men was discovered in 2009 by archaeologists doing a survey before road construction began. All the victims had been killed brutally, at once, with multiple blows from a sharp weapon visible on their bones, and their heads had been severed. In 2010, researchers identified them as Vikings by radio-carbon dating the bones to 910 to 1030 CE, when the English clashed with Viking invaders. Analysis of the isotopes in the teeth indicated Scandinavian origins. Due to their lack of clothing and their similar manner of death, they were likely executed as captives. They're now part of the Dorset County Museum.


Among the roughly 38,000 people interred beneath a neighborhood on Chicago's Far Northwest Side are the impoverished inmates of the Cook County almshouse and patients from the county insane asylum. The area was known as Dunning, and its squalid institutions were so well known that a judge in 1889 declared them a "tomb for the living." The 20 acres of the site also included a potter's field for the indigent and unclaimed, and the burials of more than 100 unidentified dead from the Great Chicago Fire of 1871.

The potter's field was revealed in 1989 during construction on luxury homes. Sewer workers who were laying pipes also turned up a corpse that was so well-preserved his handlebar mustache was still visible. Bodies were relocated to a site now called Read-Dunning Memorial Park, giving these dead some recognition in the city for the first time.

Just Two Cans of Soda a Day May Double Your Risk of Death From Heart Disease

If you've been stocking your refrigerator full of carbonated corn syrup in anticipation of warmer weather, the American Heart Association has some bad news. The advocacy group on Wednesday released results of research that demonstrate a link between consumption of sugary drinks—including soda, fruit juices, and other sweetened beverages—and an increased risk of dying from heart disease.

Study participants who reported consuming 24 ounces or more of sugary drinks per day had twice the risk of death from coronary artery disease of those who averaged less than 1 ounce daily. There was also an increased risk of death overall, including from other cardiovascular conditions.

The study, led by Emory University professor Jean Welsh, examined data taken from a longitudinal study of 17,930 adults over the age of 45 with no previous history of heart disease, stroke, or diabetes. Researchers followed participants for six years, and examined death records to determine causes. They observed a greater risk of death associated with sugary drinks even when they controlled for other factors, including race, income, education, smoking habits, and physical activity. The study does not show cause and effect, the researchers said, but does illuminate a trend.

The study also noted that while it showed an increased risk of death from heart disease, consumption of sugary foods was not shown to carry similar risk. One possible explanation is that the body metabolizes the sugars differently: Solid foods carry other nutrients, like fat and protein, that slow metabolism, while sugary drinks provide an undiluted influx of carbohydrates that the body must process.

The news will likely prove troublesome for the beverage industry, which has long contended with concerns that sugary drinks contribute to type 2 diabetes and tooth decay. Some cities, including Seattle, have introduced controversial "soda tax" plans that raise the sales tax on the drinks in an effort to discourage consumption.


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