It is just one year since the smoking ban in public places in England came into force and almost immediately the benefits were there for all to see.
There has been a marked improvement in rate of children being hospitalized with asthma which has fallen by 12.3 percent.
The benefit was almost immediate as the law came into effect and figures show lower rate of admission to hospitals due to asthma among boys and girls of all ages in cities and in the rural areas.
"Previous studies have also suggested that the smoke-free law changed people's attitudes about exposing others to second-hand smoke and led more people to abstain from smoking voluntarily at home and in cars," Dr. Christopher Millett of the School of Public Health at Imperial College London said.
"We think that exposing children to less second-hand smoke in these settings probably played in important role in reducing asthma attacks," he added.