Low HDL levels linked to memory loss

Scientists claim that low levels of high-density lipoproteins (HDL) in the middle-aged can increase the risk of dementia later in life.

According to a study published in the Arteriosclerosis, Thrombosis and Vascular Biology journal, HDL levels lower than 40 mg/dL are predictors of declining memory by the age of 60 and increase dementia risk by 53 percent.

The study reported no significant difference in terms of good cholesterol levels and the severity of memory loss between the two genders.

Findings also revealed that statins (drugs used to increase HDL and/or lower LDL (bad cholesterol) levels) do not influence the course of memory loss.

Scientists concluded that high HDL cholesterol levels not only protect against heart attack but also prevent from the formation of beta-amyloid plaques which characterize Alzheimer's disease.

In order to increase HDL and lower LDL cholesterol levels, the American Heart Association recommends individuals exercise regularly, reduce their intake of fats, particularly trans and saturated ones, and instead consume monounsaturated fats such as olive, canola and peanut oils.