Monday October 21, 2019

Women with Sleep Apnea at Greater Cancer Risk, Warn Researchers

The data showed that 2.8 per cent of all women had been diagnosed with a serious cancer compared to 1.7 per cent of all men in the group

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Previous research has shown that obesity and high-fat diets both together and independently increase the risk of pancreatic cancer.
The actress was diagnosed with cancer earlier this year. Pixabay

Women with obstructive sleep apnea (OSA) are more likely to be diagnosed with cancer than men with the condition, warn researchers.

Common symptoms of sleep apnea, include snoring, disrupted sleep and fatigue.

“Our study of more than 19,000 people shows that the severity of OSA is linked to a cancer diagnosis,” said study lead author Athanasia Pataka, Assistant Professor at Aristotle University of Thessaloniki in Greece.

“This link was especially strong in the women that we analysed, and less so in the men, and the study suggests that severe OSA could be an indicator for cancer in women, though more research is needed to confirm these findings,” Pataka explained.

In people suffering from OSA, the airways close completely or partially many times during sleep, reducing the levels of oxygen in the blood.

Cancer patient
Cancer patient.

The researchers analysed data from 19,556 people (5,789 women and 13,767 men) included in the European Sleep Apnoea Database (ESADA) to explore the link between OSA severity, low blood oxygen levels and cancer development.

The researchers looked at the number of times the participants experienced partial or complete airways closure per hour of sleep, as well as the number of times their blood oxygen levels dropped below 90 per cent at night.

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The data showed that 2.8 per cent of all women had been diagnosed with a serious cancer compared to 1.7 per cent of all men in the group.

The study, published in the European Respiratory Journal, suggests that people who experience more closures of the airways during sleep and whose blood oxygen saturation levels drop below 90 per cent more frequently are more likely to be diagnosed with cancer than people without OSA. (IANS)

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The First All-Women Spacewalk is Set to Take Place This Week: NASA

According to NASA, The Spacewalk will last approximately six and a half hours

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Spacewalk
The Spacewalk will last approximately six and a half hours, according to NASA. Pixabay

The first all-woman spacewalk is set to take place this week itself as NASA astronauts Christina Koch and Jessica Meir are scheduled to venture outside the International Space Station (ISS) on October 17 or October 18.

The spacewalk will last approximately six and a half hours, according to NASA.

“@Space_Station update: our first all-female spacewalk with @Astro_Christina and @Astro_Jessica will be Thursday or Friday to replace a faulty battery charge-discharge unit,” NASA Administrator Jim Bridenstine tweeted on Tuesday.

Station managers decided to postpone previously planned spacewalks that had been set to install new batteries this week and next in order to replace the faulty power unit, called a Battery Charge/Discharge Unit (BCDU).

The BCDU failed to activate following the October 11 installation of new lithium-ion batteries on the space station’s truss.

Spacewalk
The Spacewalk will last approximately six and a half hours, according to NASA. Pixabay

NASA said that the BCDU failure has not impacted station operations, safety of the crew, or the ongoing experiments aboard the orbiting laboratory, many in preparation for future human missions to the Moon and Mars.

However, the failed power unit does prevent a new lithium-ion battery installed earlier this month from providing additional station power.

An all-woman spacewalk, involving Koch and NASA astronaut Anne McClain, was originally scheduled for March.

But that spacewalk was scuttled because properly fitted spacesuits could not be readied in time for both astronauts, Space.com reported.

Spacewalk
An all-woman Spacewalk, involving Koch and NASA astronaut Anne McClain, was originally scheduled for March. Pixabay

So far, the 15 women who have conducted a spacewalk did so with a male companion. So when Koch and Meir venture out of the space station this week, they will make some long-overdue history.

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This will be Koch’s fourth spacewalk and Meir’s first. (IANS)