Permanent Daylight Saving Time would lead to darker mornings from November to March. This would mean darker commutes for everyone, but how much would it affect children going to school? 蘑菇视频 researchers did the math for 14 out of the 19 states that preapproved the change. Using school start times, enrollment data, and latitude and longitude measurements, the team calculated just how many days each child would be commuting to school in the dark and then added the trips together.
Election recognizes the new member鈥檚 鈥渙utstanding record of scientific and technical achievement and willingness to assist the Academy in providing the best available scientific information and technical understanding to inform complex policy decisions in Washington.鈥澛�
With several university athletic programs around the country 鈥� including the 蘑菇视频 鈥斅燼nnouncing moves to new conferences that will likely increase travel for student-athletes, a group of sleep and circadian scientists and physicians have published a white paper describing the significance of repeated, chronic jet lag on student-athlete health and performance 鈥� both in academics and in sports, and suggesting strategies to reduce the consequences of travel across time zones.
A study measuring the sleep patterns of students at the 蘑菇视频 found that students fell asleep later in the evening and woke up later in the morning during winter, when daylight hours on the 蘑菇视频鈥檚 Seattle campus are limited and the skies are notoriously overcast. Researchers believe the students’ natural circadian clocks were being “pushed back” or delayed in winter because they were not getting enough exposure during the day to natural light, and that getting more daytime light exposure can help reverse this.
On Sunday, Nov. 7 we switch from daylight saving time to standard time. A 蘑菇视频 expert in circadian rhythms says that鈥檚 a good thing.
Sleep cycles in people oscillate during the 29.5-day lunar cycle: In the days leading up to a full moon, people go to sleep later in the evening and sleep for shorter periods of time. The team, led by researchers at the 蘑菇视频, observed these variations in both the time of sleep onset and the duration of sleep in urban and rural settings 鈥� from Indigenous communities in northern Argentina to college students in Seattle, a city of more than 750,000. They saw the oscillations regardless of an individual鈥檚 access to electricity, though the variations are less pronounced in individuals living in urban environments.
In a study published June 10 in Current Biology, a team from the University of Colorado Boulder and the 蘑菇视频 reports that a group of students at CU Boulder generally got more sleep after widespread stay-at-home orders and social distancing guidelines were put into place in mid-March.
In 2016, Seattle Public Schools pushed back the start times for the district’s 18 high schools by 55 minutes, from 7:50 a.m. to 8:45 a.m. And as hoped, teenagers used the extra time to sleep in.
New research comparing traditional hunter-gatherer living conditions to a more modern setting shows that access to artificial light and electricity has shortened the amount of sleep humans get each night.