Health knowledge made personal
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Robert Stickgold, Matthew P Walker. “Sleep-dependent memory triage: evolving generalization through selective processing.” Nature Neuroscience 16, 139-145; 28 January 2013.
Daily supplements of lutein, a carotenoid compound, may help to improve vision under low ambient light conditions.
Cardiac disease is an independent risk factor for mild cognitive impairments presaging vascular dementia, among older women.
The ancient Chinese mind-body practice of qigong reduces depressive symptoms and improves quality of life, among women undergoing radiotherapy for breast cancer
Canadian researchers show improved glucose levels and lower risks of hypoglycemia via a dual-hormone artificial pancreas.
The timing of meals may predict the achievement of weight management goals.
Dysfunctional pathway may explain the relationship between brain deterioration, sleep disruption and memory loss as we age.
Small amounts of activity – 1 or 2-minutes at a time that add up to 30 minutes a day – may be as beneficial as longer bouts of structured exercise.
Short-term use of folic acid supplements is unlikely to substantially increase or decrease overall cancer risk.
Rich in catechins green tea supplements may help protect skin against sunburn and the longer-term effects of ultraviolet damage.
Regular consumption of deep-fried foods associates with an increased risk of prostate cancer.
Tip #124 - Work Out at Work
If you are one of the millions with a desk job, be sure to get out of your chair once an hour for 5-10 minutes to do some standing stretches.
Gently stretch your shoulders, arms, neck, back, sides, chest, and calves. This can improve circulation and relieve neck and back stiffness. Done regularly, this also can improve your motivation to do some serious aerobic exercise after your workday ends. |
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Healthy adults typically spend one-quarter of the night in deep, non-rapid-eye-movement (REM) sleep. Slow waves are generated by the brain's middle frontal lobe. Deterioration of this frontal region of the brain in elderly people is linked to their failure to generate deep sleep. Matthew Walke, from the University of California/Berkeley (California, USA), and colleagues have identified a link brain deterioration, sleep disruption and memory loss. The team observes that slow brain waves generated during the deep, restorative sleep we typically experience in youth play a key role in transporting memories from the hippocampus – which provides short-term storage for memories – to the prefrontal cortex's longer term "hard drive." However, in older adults, memories may be getting stuck in the hippocampus due to the poor quality of deep 'slow wave' sleep, and are then overwritten by new memories. The discovery that slow waves in the frontal brain help strengthen memories paves the way for therapeutic treatments for memory loss in the elderly.