Tuesday December 10, 2019

Women can Boost their Working Memory with Hormone Therapy

Benefits of oestrogen therapy in women.

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oestrogen therapy can increase working memory under stress
oestrogen therapy can increase working memory under stress. wikimedia commons

New York, Nov 5: Undergoing a type of hormone replacement therapy — used for menopausal treatment — may help protect as well as improve working memory for some women as they age, according to a new study.

Hormone replacement therapy uses female hormones – oestrogen and progesterone – to treat common symptoms of menopause and ageing.

The findings showed that women taking oestrogen-only therapy had lower levels of the stress hormone cortisol and performed better on tests of “working memory” following exposure to stress compared to women taking a placebo.

“Our study suggests that oestrogen treatment after menopause protects the memory that is needed for short-term cognitive tasks from the effects of stress,” said lead author Alexandra Ycaza Herrera, a researcher at the University of Southern California – Davis.

To measure the effect of oestrogen therapy on working memory under stress, the team recruited 42 women with an average age of 66.

Half of the postmenopausal women had been on estradiol — a type of oestrogen therapy — for approximately five years, while the others had received a placebo.

The researchers, in the paper published in the Journal of Clinical Endocrinology and Metabolism, collected saliva to measure the women’s levels of cortisol, oestrogen, and progesterone.

They also ran a test of working memory called a “sentence span task”, in which the women were each given a series and then asked whether each sentence made sense. They also were asked to recall the last word of each one.

While women receiving oestrogen therapy had a smaller increase in cortisol and showed no decrease in working memory function, even after being exposed to stressful situation, those taking the placebo experienced a spike in cortisol levels as well as demonstrated a decrease in working memory function.

Previous studies have pointed to potential health risks — the Ahigher risk of breast cancer, heart disease, stroke and blood clots — of the treatment.

Thus, Herrera noted that “hormone replacement therapy may not be right for every woman, but women need to be able to have the conversation with their doctors”.(IANS)

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Global Warming Can Make You Fall ill More Often: Study

The study said that increased heat may cause illness through undernourishment in a number of ways: reducing appetites, provoking more alcohol consumption, reducing motivation or ability to shop and cook and exacerbate any undernutrition

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Global Warming
Global Warming is one of the biggest threats to the reduction of hunger and undernutrition, especially in low and middle-income countries. Pixabay

Global Warming is likely to increase illnesses caused by undernutrition, due to the effects of heat exposure, researchers have warned.

For the study published in the journal PLOS Medicine, the researhers analysed daily hospitalisation data covering almost 80 per cent of Brazil between 2000 and 2015.

They studied the link between daily mean temperatures and hospitalisation for undernourishment according to the International Classification of Diseases.

“The association between increased heat and hospitalisation for undernutrition was greatest for individuals aged over 80, and those 5 to 19 years,” said the researchers from Monash University, Australia.

The researchers found that for every 1 degree Celsius increase in daily mean temperature during the hot season, there was a 2.5 per cent increase in the number of hospitalisations for undernutrition.

“We estimated that 15.6 per cent of undernutrition hospitalisations could be attributed to heat exposure during the study period,” said study’s lead author Yuming Guo.

Global Warming
Global Warming is likely to increase illnesses caused by undernutrition, due to the effects of heat exposure, researchers have warned. Pixabay

The study said that increased heat may cause illness through undernourishment in a number of ways: reducing appetites, provoking more alcohol consumption, reducing motivation or ability to shop and cook and exacerbate any undernutrition, resulting in hospitalisation.

“Climate change is one of the biggest threats to the reduction of hunger and undernutrition, especially in low and middle-income countries. It has been estimated that climate change will reduce global food availability by 3.2 per cent and thus cause about 30,000 underweight-related deaths by 2050,” the report said.

ALSO READ: Huawei Plans to Bring Custom-Made OS For its Smartphones Soon

“It is plausible to speculate that climate changes could not only increase the rate of undernutrition in the most affected areas of the globe, but at the same time, impair individuals’ capacity to adapt to projected rises in temperature,” said the researchers. (IANS)