Researchers say they have created a smartphone app that offers real-time monitoring of smoking-induced ageing, and may help smokers quit the habit.
Smoking is one of the major life-shortening factors that leads to accelerated ageing and premature death, said scientists from Roswell Park Cancer Institute in the US.
Quitting smoking increases lifespan and decreases biological age, as measured by DNA methylation, they said.
The researchers created the mobile app, Gero Healthspan, that offers real-time monitoring of bioage changes in response to lifestyle interventions.