• Sekrayray@lemmy.world
    1·
    1 year ago
    1. Smoking
    2. Smoking
    3. Smoking

    There are already a lot of good answers but I want to highlight this. Chronic tobacco smoke causes increased aging due to multiple mechanisms. Moreover, environmental tobacco exposure from second hand and third hand smoke prior to the 1990s was MASSIVE. So even if you didn’t smoke you got insane daily exposures to the same chemicals.