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Six popular sugar substitutes linked to faster brain aging

A study of nearly 13,000 adults found that people consuming the most artificial sweeteners experienced a 62% faster decline in memory and thinking skills, equivalent to approximately 1.6 additional years of brain aging. Six popular sweeteners were linked to faster cognitive decline, raising concerns about the long-term brain health effects of common sugar substitutes, although causation was not established.

Science

Popular cannabis sleep gummies may have a hidden dark side

A cannabis-derived ingredient commonly found in sleep gummies may be more habit-forming than previously thought, with new research showing that repeated exposure caused tolerance and withdrawal symptoms in mice. Scientists warn that CBN may carry risks similar to THC, although its long-term effects in humans remain largely unknown.

World

'Popular dissatisfaction' across Europe: 'Promises of more economic growth haven't come true'

Oliver Farry is pleased to welcome Steven Erlanger, Chief Diplomatic Correspondent in Europe for The New York Times, based in Berlin. Europe's political centre is confronting a crisis that extends far beyond electoral volatility. From France and Germany to Italy and Spain, mounting economic frustration, generational inequality and declining confidence in established political leadership are reshaping the continent's democratic landscape. "The promises of more economic growth haven't come true," explains Erlanger, describing a continent marked by "a kind of general disgust" and "a sense of drif

Science

Ozempic and Wegovy linked to rare risk of sudden vision loss

Popular diabetes and weight loss drugs such as Ozempic and Wegovy have been linked to a slightly increased risk of a rare condition that can cause sudden, potentially permanent vision loss. Although the risk remains very low, Rutgers researchers say the findings warrant attention as millions of people turn to GLP-1 medications.

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Popular weight loss drugs linked to a surprising fingernail problem

Popular GLP-1 weight loss drugs, such as Ozempic and Wegovy, have been linked to unexpectedly high rates of nail detachment, hair loss, and scalp inflammation, with some problems occurring several times more frequently among users. Researchers found that weight loss alone could not fully explain the differences, suggesting there may be more to these overlooked symptoms.

Science

Scientists warn a popular vitamin D supplement may have a hidden downside

Not all vitamin D supplements are created equal, and new research suggests that one popular form may have an unexpected downside. Scientists found that taking vitamin D2 can actually lower the body's levels of vitamin D3, the form naturally produced by sunlight and more effective at boosting overall vitamin D. Previous studies also suggest that vitamin D3 may provide stronger immune protection against viruses and bacteria.

Health

Glucosamine, a popular joint supplement, linked to faster Alzheimer’s progression

A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint supplement may intensify an abnormal sugar-tagging process in the Alzheimer’s brain, although researchers say clinical trials are needed to determine whether it actually causes harm.

Science

Popular sweetener byproduct damages DNA in human cells

Sucralose, the artificial sweetener used in Splenda, came under scrutiny after a study found that a related chemical damaged DNA and weakened the gut barrier in laboratory experiments. But later findings have complicated that alarming picture.

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