Health Science For Life: Heart Disease, High Blood Pressure and TV !

Wednesday, April 20, 2011

Heart Disease, High Blood Pressure and TV !

Comment:

1- Watching too much TV is bad for health, because it can affects your vision, especially when you sit too close, or watch tv in the dark, for long hours.

2- Watching too much tv can affects your physical body, because you essentially do nothing, to stengthen and develop your body, its all idle, sitting down and doing nothing. This will incrementally increase the fat in your body, and weaken your body. Worst still, I saw people laying down and watch tv, they told me, 'This is too comfortable!'... Then when they wake up to go get a drink, they discover that their body becomes numb (and thats the first stage of a possible stroke in the coming future!).

3- And now, with new medical studies, that relates heart disease, high blood pressure, and diabetes?! Not forgetting also back pain and possible stroke, I think I need to reconsider lessening my tv hours still further.

4- Also you can save your money on (wasted) unnecessarily electricity bills, by watching less tv.

Note: Oh yes, its not just 'kids' that will be highly affect by the tv 'side effect'... it also apply to teenagers, adolescents, old people and even adults! Beware!

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http://au.news.yahoo.com/latest/a/-/latest/9230429/too-much-tv-can-give-kids-heart-disease/1/date/asc/1056646/
(20 April 2011)

Too Much TV Can Give Kids Heart Disease
AAP April 20, 2011, 12:02 am

Kids who spend more time than average watching TV are more likely to develop heart disease, high blood pressure and diabetes in later life, a new Australian study has found. The study, undertaken by University of Sydney researchers, found six-year-olds who spent the most time watching television had narrower arteries in the back of their eyes.

This increased their chances of developing heart disease, high blood pressure and diabetes when they were older, the study, released on Wednesday, said. About 1500 six to seven-year-old children from 34 primary schools in Sydney were examined during the study. On average, the children studied spent 1.9 hours a day watching television and 36 minutes a day in organised physical activity.

Those with the highest levels of physical activity - just over an hour or more - had significantly wider average retinal arteries than those who spent less than half an hour a day being physically active. "We found children with a high level of physical activity had a more beneficial microvascular profile compared to those with the lowest levels of physical activity," said Dr Bamini Gopinath, lead author and senior research fellow at the University of Sydney's Centre for Vision Research.

"This suggests unhealthy lifestyle factors may influence microcirculation early in life and increase the risk of heart disease and high blood pressure later in life." Replacing one hour a day in front of the television with physical activity could help make a difference, researchers said.

"Free play should be promoted and schools should have a mandatory two hours a week in physical activity for children," Dr Gopinath said. "Parents need to get their children up and moving and off the couch."

INTO THE FUTURE WITH SPACE-PLANE !

http://au.news.yahoo.com/thewest/a/-/world/8991590/into-the-future-with-spaceplane/ (11th March 2011)

INTO THE FUTURE WITH SPACE-PLANE

AGENCIES, The West Australian, March 11, 2011, 7:14 am

British engineers have unveiled a revolutionary 'spaceplane' that can take off from an ordinary airport runway and carry tourists and which could operating within a decade.

The “Skylon spaceplane”, which so far has cost $1.12 billion to develop, can travel at more than five times the speed of sound.

The unpiloted craft, which can take off from an airport runway, has no external rockets and two engines use hydrogen and oxygen to propel it more than 18 miles into space, the Daily Telegraph reported.

Officials from the UK Space Agency believe it can revolutionise space travel and significantly cut its cost by taking advantage of newly developed technology.

Although it is primarily intended to launch satellites, they say the ship, which will carry 30 to 40 passengers, could even pioneer a new era in space tourism.

Reports have suggested that developing the craft will eventually cost about $12 billion, the same amount it costs to develop an Airbus jet. The craft has been developed by Reaction Engines with support from the new space agency.

Mark Hempsell, future programs director at Reaction Engines Ltd, told CNN: "The engine starts by burning hydrogen with air and finishes up burning hydrogen with liquid oxygen like a shuttle engine."

Because all this is in the same rocket chamber, the aircraft can take off and land in the same way as a conventional jumbo jet.
Mr Hempsell said: "It's a very doable system. The basics of the engine are thoroughly rooted and explored, so there is no danger they aren't going to work. We feel that this should have taken over from the shuttle a while back."

Richard Varvill, technical director and one of the founders of Reaction Engines, believes his company’s craft will revolutionise space travel. “Access to space is extraordinarily expensive, yet there’s no law of physics that says it has to be that way,” he told The Engineer magazine.

“We just need to prove it’s viable. The simple truth is that the Earth is part of a much bigger system. “We’re talking a bit of science fiction now, but in theory there’s nothing that stops you going out (into space).

Officials will meet next week at a special two-day workshop next week, which will investigate how it can be developed commercially. Reaction Engines said it will take 10 years to develop, leaving Britain to become the first country in the world to launch a spaceplane in orbit.

Health Science For Life

Wednesday, April 20, 2011

Heart Disease, High Blood Pressure and TV !

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