Tuesday October 22, 2019

Research Suggest Yo-yo Dieting Can Raise Women’s Heart Disease Risk

The more episodes of weight cycling women reported, the poorer they scored on 'Life's Simple 7', according to the researchers

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Heart Disease
Even low exposure to arsenic, lead may up heart disease risk. Pixabay

Yo-yo dieting — weight cycling, or the cyclical loss and gain of weight — can make it harder for women to control a variety of heart disease risk factors, according to a research.

The study found in case of women losing at least 10 pounds and regaining the weight within a year could be detrimental to heart heath.

Besides achieving a healthy weight, maintaining a consistent body weight is important for lowering heart disease risks.

Earlier research showed similar results in men, with those who weight-cycled having twice the risk of cardiovascular death in middle age.

“Achieving a healthy weight is generally recommended as heart healthy but maintaining weight loss is difficult and fluctuations in weight may make it harder to achieve ideal cardiovascular health,” said Brooke Aggarwal, Assistant Professor at Columbia University in New York.

The results were presented at the American Heart Association’s EPI Lifestyle Scientific Sessions 2019 in Texas.

Many menopausal symptoms that you may aren't aware of can cause much harm to you.
Yo-yo dieting may raise women’s heart disease risk.

For the study, the team examined 485 women (average age 37 years, average body mass index 26, in the overweight range).

Women reported how many times (other than during pregnancies) they had lost at least 10 pounds, only to regain the weight within a year.

Most women (73 per cent) reported at least one episode of yo-yo weight loss, with a range of zero to 20 episodes.

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They were assessed on American Heart Association’s ‘Life’s Simple 7’ — a measure of how well people control major heart disease risk factors, including body mass index, cholesterol, blood pressure, blood sugar, smoking, physical activity and diet.

The more episodes of weight cycling women reported, the poorer they scored on ‘Life’s Simple 7’, according to the researchers. (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)