Newscasts

PNS Daily Newscast - December 14, 2018 


The Senate votes to withdraw funding for the Saudi war in Yemen. Also on the Friday rundown: the Global Climate Conference reinforces the need for grassroots movements; and could this be the most wasteful time of year?

Daily Newscasts

Study: There's a Price for Working Overnight

According to the Bureau of Labor Statistics, nearly 15 million Americans work a permanent night shift or regularly rotate in and out of night shifts. (Twenty20)
According to the Bureau of Labor Statistics, nearly 15 million Americans work a permanent night shift or regularly rotate in and out of night shifts. (Twenty20)
June 13, 2018

JEFFERSON CITY, Mo. - Burning the midnight oil for work or school may come at a cost. A new study confirms altered sleep patterns can affect a person's health.

A University of Colorado study asked a group of men to live like they worked the night shift for just a few days. Lead study author Christopher Depner said pulling an all-nighter even once can disrupt more than 100 critical proteins in the blood, including those that influence blood sugar, energy metabolism and immune function.

"For the proteins related to energy expenditure," Depner said, "some of those proteins were changing in a way where participants were actually using less energy across the day, which could actually lead to weight gain and obesity over time."

It's estimated that 20 percent of the global workforce works night shifts. Depner said he believes the findings could lead to new treatments for night-shift workers, who are at higher risk for diabetes and cancer.

Depner noted that the study is the first to examine how protein levels in human blood vary over a 24-hour period and how sleep and meal timing impacts them.

"We simulated shift work, but it applies for sure to jet lag and, yeah, college students pulling an all-nighter for studying," he said, "or even if you just really change your sleep-wake schedule over the weekend."

Depner said he believes the study results also could enable doctors to someday time when people are given medications, vaccines and diagnostic tests around the body's circadian clock.

"As we start to identify how these proteins cycle across the day, we can identify the best time of day to administer some drugs," he said, "and this could help us potentially reduce the dose that we need for the drugs, minimize side effects and things like that."

Other studies have confirmed that long-term night-shift work can contribute to certain cancers, heart disease and ulcers, among other health issues.

The study is online at pnas.org.

Stephanie Carson, Public News Service - MO