Health

Millions more middle-aged are obese, study suggests

Using a new, lower BMI cut-off for obesity would give a truer picture of who is affected, researchers say....

Study links sleep apnea severity during REM stage to verbal memory decline

A research team has revealed the link between the frequency of sleep apnea events during the rapid-eye-movement stage and the severity of verbal memory impairment in older adults at risk for Alzheimer's disease. Verbal memory refers to the cognitive ability to retain and recall information presented through spoken words or written text and is particularly vulnerable to Alzheimer's.

Far from toxic, lactate rivals glucose as body's major fuel after a carbohydrate meal

Scientists have documented the benefits of lactate burning in exercising humans, but few studies have looked at the role of lactate during rest or after a meal. Exercise physiologists challenged fasting men and women with a carbohydrate meal and then monitored lactate in the blood and fat vs carbohydrate metabolism. They found that lactate buffers glucose from a meal, and that lactate is utilized for energy almost as much as glucose.

Study explores role of epigenetics, environment in differing Alzheimer's risk between Black and white communities

Environmentally caused alterations to specific areas of the genome -- known as imprint control regions -- during early development may contribute to the risk of developing Alzheimer's disease, and Black people may be more affected than white people.

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