Scientists trying to form a nicotine pill in order to treat Alzheimer's disease suggested that smoking can help improve one’s memory as well as concentration level.

Nicotine has long been known to have an invigorating effect on the human brain.

However, the lethal fallouts of cancer, stroke and heart problem, mean its benefits have been largely set aside by medical investigation.

Now scientists, who wish to create drugs, which replicate the active components in tobacco without causing heart disease, cancer, stroke or addiction, found that nicotine can improve the intelligence and recall power of animals in lab experimentations.

The scientists, who decide to exhibit their newest findings at the Forum of European Neuroscience in Geneva, expect that the novel drugs that will be available in the coming five years, may have less fallouts than subsisting medicines for dementia.

But, the researchers emphasized the new treatment at best will only give patients some extra months of independent life rather than fully freeing them of Alzheimer's disease.

Professor Ian Stolerman of Britain's King's College, who led the study, said, “The substances that we call drugs have, in the majority of cases, do have a mixture of beneficial and harmful effects and nicotine no exception to this.”

Prof Ian analyzed how nicotine changes the brain's circuitry to improve concentration and memory.

In his study, he pointed that the concentration power in rats rose by 5% when injected with nicotine, the report added.