91av

Health

Teenagers with unhealthy lifestyles age faster than healthier peers

Smoking, regularly drinking alcohol, doing little exercise and having a high BMI make teenagers age two to five weeks a year faster biologically, according to a large DNA study

By Alice Klein

21 June 2022

Teenagers smoking

Smoking makes teens age faster biologically

SpeedKingz/Shutterstock

Young people who smoke and have other unhealthy lifestyle practices age faster biologically than peers without these habits, according to a study that followed 800 teenagers for a decade and assessed markers of ageing in their blood.

“I think if teenagers knew that things like smoking actually made them biologically older, it would motivate them to stay healthy,” says at the University of Jyväskylä in Finland, who led the research.

We normally think of age in terms of number of birthdays – our so-called chronological age. But the biological age

Sign up to our weekly newsletter

Receive a weekly dose of discovery in your inbox. We'll also keep you up to date with 91av events and special offers.

Sign up

To continue reading, today with our introductory offers

or

Existing subscribers

Sign in to your account
Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop