speeds up muscle loss

Researchers at The University of Nottingham said smoking not only causes cancer, heart attacks and strokes, but nicotine addicts are also more likely to lose more muscle mass over the years than a non-smoker.
This, they warn, will then lead to an accelerated decline in physical function and, inevitably, a loss of independence.
Previous research has already established that smokers tend to have a lower muscle mass than non-smokers, but until now no one has been able to explain why.
But new research by Prof Michael Rennie and Dr Philip Atherton, with colleagues in Denmark and the United States, has found that smoking impairs the day to day upkeep of muscle.
This is likely to speed up a condition known as sarcopenia, a natural loss of muscle mass with age, which is linked to poor balance, gait speed, falls, and fractures.
Sixteen men and women - both smokers with a long-standing 20-a-day habit and non-smokers - in their mid-60s took part in the study, funded by the Biotechnology and Biological Sciences Research Council.
The subjects were all considered to be healthy, with no symptoms of lung disease.
During the study doctors discovered the amounts of myostatin, a muscle growth inhibitor which breaks down muscle protein, were substantially higher in smokers than non-smokers.
Dr Atherton said: "From our tests, we can conclude that smoking slows the muscle protein synthesis machinery -- probably impairing day to day upkeep of muscle. Hopefully the UK smoking ban will encourage people to quit while they are still young, helping them to keep in good health in later life."

romez he dont want to read it becuse he is a smoker and he is ashamed.... well he should be :34534:

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bhai u dont sleep u and r computer .... iw ill breeak it one day