Moore's Law is the maxim that computing power grows exponentially, doubling every two years. Now there's a grim corollary from the medical world: The number of people suffering from dementia is expected to roughly double every two decades.
That's the report in the new issue of The Lancet
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Those astonishing figures emerged when researchers from Alzheimer's Disease International put together studies of dementia prevalence from around the world. The study found that 60 percent of those living with dementia are from developing countries. That figure will rise to 71 percent by 2040.
The number of cases will increase 100 percent in the developed world by 2040 and will rise more than 300 percent during the same period in India, China and South Asian and western Pacific regions.
"We believe that the detailed estimates contained in this paper are the best currently available basis for policymaking
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"Primary prevention should focus on targets suggested by current evidence; risk factors for vascular disease, including hypertension, smoking, type 2 diabetes" and high levels of bad cholesterol.
The increase translates into one new case of dementia every seven seconds.
Catching up on other news from a busy week on the consumer-health front:
-- More women are too heavy when they get pregnant, and that's unsafe for both mother and baby, according to a new University of Buffalo study.
In eight western New York counties between 1999 and 2003 the number of women who were overweight when they conceived rose 11 percent; the number who were obese grew by 8 percent.
The study is in the current American Journal of Obstetrics and Gynecology.
"This increase in obesity is important to the obstetrician and the patient because obesity can be a high-risk situation in a pregnant woman," said John Yeh, lead author and chairman of gynecology-obstetrics at Buffalo's medical school.
"Obese patients who become pregnant are at increased risk of developing gestational diabetes, pregnancy-related hypertension, preeclampsia, neonatal death and labor complications."
-- Another study found that women who have had a child die of sudden infant death syndrome are at risk of complications during future pregnancies.
Researchers at Britain's Cambridge University found such women were two to three times more likely to give birth to a baby who was small or pre-term, which doubles the risk the infant could die of SIDS
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-- While we're still getting used to the idea of a partial face transplant in France, British doctors have gotten the OK to look for a person who meets criteria for a full-face transplant. Further approvals would be needed before an operation is performed.
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