Children in Europe are bombarded
with hidden digital advertising and marketing promoting fatty, sugary and salty
foods that is damaging their health and adding to the region’s obesity problem,
World Health Organisation experts said on 4 November. The researchers called
for policymakers to do more to protect children from junk food advertising
messages on networking sites, games – known as “advergames” – and other social
media. Government have given the prevention of childhood obesity the highest
political priority, (yet) consistently find that children – most vulnerable
group – are exposed to countless numbers of hidden digital marketing techniques
promoting foods high in fat, sugar and salt. In the absence of effective
regulation of digital media in many countries, children are increasingly
exposed to persuasive, individually tailored marketing techniques that parents
may underestimate, or be unaware of. Often, parents do not see the same advertisements,
nor do they observe the online activities of their children; many therefore
underestimate the scale of the problem. About two-third of children who are
overweight before puberty will be overweight in early adulthood, and an
estimated 25% of school-aged children in Europe are already overweight or
obese. Overweight and obese children are likely to stay obese into adulthood
and more likely to develop chronic illnesses such as diabetes and heart disease
and cancer at a younger age.
Saturday, 12 November 2016
To Treat Chronic Pain, Tune Brain To A Certain Frequency
Scientists have shown for the first
time that “tuning-in” the brain to a particular frequency can alleviate chronic
pain. Chronic pain is often a mixture of recurrent acute pains and chronic persistent
pain. About 20-50% of the general population suffers from chronic pain, which
lasts for six months. Nerve cells on the brain surface are coordinated with
each other at a particular frequency depending on the state of the brain. Alpha
waves tuned at 9-12 cycles per second have been recently associated with
enabling parts of the brain concerned with higher control to influence other
parts of the brain. University of Manchester researchers said that alpha waves
from the front of the brain, the forebrain, are associated with placebo
analgesia and might be influencing how other parts of the brain process pain. This
led to the idea that if we can ‘tune’ the brain to express more alpha waves, we
may reduce pain experienced by people with certain conditions. They found that
this can be done by providing volunteers with goggles that flash light in the
alpha range or by sound stimulation in both ears phased to provide the same
stimulus frequency. Both visual and auditory stimulation significantly reduced
the intensity of pain induced by laser heat repeatedly shown on the back of the
arm.
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