Researchers studied 186 pairs of twins to uncover how lifestyle choices affect perceived age and facial features.

They found that twins with a history of smoking and tanning looked noticeably older than their siblings who avoided these habits.

The study, published in ASPS, highlights the science of aging and was conducted at the Twins Days Festival in Twinsburg, Ohio.

Take the two women pictured here: both are 61, yet one clearly appears older. The culprits? Smoking and sun exposure.

Prolonged UV exposure, outdoor activities, and neglecting sunscreen accelerate aging, with effects compounding over time. UV rays break down collagen and elastin—proteins vital for firm, youthful skin—resulting in deep wrinkles and lasting discoloration. Smoking exacerbates this by damaging these fibers and reducing blood flow, leaving the skin dull and sagging.

The takeaway? Quit smoking and wear sunblock.