What's the buzz

What's the buzz

Work keeps dementia away

Alzheimer’s disease may be kept at bay by continuing to work later in life, say scientists.
Researchers at the Institute of Psychiatry at King’s College London came up with proposition after analysing data from 1,320 dementia patients, including 382 men. The researchers found that continuing to work even in old age helped men to keep their brains sharp enough to delay dementia.
Dementia is caused by the mass loss of cells in the brain, and experts believe one way to guard against it is to build up as many connections between cells as possible by being mentally active throughout life. This is known as a ‘cognitive reserve’.

While a good education is known to be associated with a reduced dementia risk, the latest study suggests that mental stimulation continued into later years may also have a positive effect.
The study showed that people who retired late developed Alzheimer’s at a later stage than those who opted not to work on.

Personalised cancer treatment

Researchers at the University of California have announced the development of an efficient system for delivering siRNA into primary cells, which may one day lead to personalised cancer treatment.
“RNAi has an unbelievable potential to manage cancer and treat it,” said Dr Steven Dowdy, Howard Hughes Medical Institute.

“While there’s still a long way to go, we have successfully developed a technology that allows for siRNA drug delivery into the entire population of cells, both primary and tumour-causing, without being toxic to the cells,” he added.

The researcher has revealed that his study focussed on the potential for a small section of protein called peptide transduction domain (PTD), which has the ability to permeate cell membranes, as a delivery mechanism for getting siRNAs into cancer cells.

A good sleep helps you lose weight

Getting more sleep can help you shed those extra pounds, a study has suggested.
According to the study, body mass index (BMI) is linked to length and quality of sleep in a surprisingly consistent fashion.

During the study, researchers analysed the sleep, activity and energy expenditures of 14 nurses who had volunteered for a heart-health programme at the Walter Reed, where the nurses were employed.
The programme included nutritional counselling, exercise training, stress management and sleep improvement. Each participant wore an actigraphy armband that measured total activity, body temperature, body position and other indices of activity and rest.

Get up and walk to avoid diabetes

Do you hate it when the TV remote is not around and you’ve to stand up to change channels? Well, it’s time you start loving doing it, for experts have said that long periods of sitting down could lead to diabetes, cardiovascular disease and even obesity.

In a new study, it has been shown that most people spend just one hour of their waking day not seated. And now, for the first time, Australian researchers will try to track just how much lounging around people do and whether simple tasks, like standing up to turn the TV off, can improve health.
Experts have predicted that time spent between watching the TV, working and travelling, in total consumes 14 hours of a day — with most people only awake for 15 hours.

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