In their wound-healing form fibroblasts at the edges of a cut will shrink This causes the wound to close up This squeezing or contraction of the skin takes a lot of energy Fortunately fibroblasts are powered by cellular engines Called mitochondria (My-toh-KON-dree-uh) these tiny powerhouses turn food (sugar) into fuel
Among smokers who have attempted to stop without professional support those who use e-cigarettes are more likely to report continued abstinence than those who used a licensed NRT product bought over-the-counter or no aid to cessation write the authors
Is vaping dangerous? Every day we see the stories in newspapers and on television about vaping health risks Usually they?re centered on the study du jour Maybe it?s a chemical today Yesterday it was exploding batteries Last week it was the increase in teenage vaping Next month some new vaping danger will grab the headlines But what is the reality? Do the risks of vaping outweigh the rewards?
Farsalinos and Polosa concluded Currently available evidence indicates that electronic cigarettes are by far a less harmful alternative to smoking and significant health benefits are expected in smokers who switch from tobacco to electronic cigarettes
The findings of this study do appear to reassure that use of e-cigarettes and nicotine replacement therapy ? while continuing to provide nicotine ? can reduce exposure to toxic chemicals that can lead to cancer in cigarette smokers
It?s not clear yet if the fibroblast damage that Rahman showed in the lab signals that wounds will heal more slowly in people who vape After all in the lab scientists can manipulate one variable at a time while holding other factors constant But in the body many processes will be at work all at once This can make it harder to tease out whether such lab tests mimic well what would happen to an otherwise healthy person