Deaths from falling out of bed in the US

From 2005 to 2021, as Americans consumed less ice cream per capita, fewer of them died by falling out of bed, yielding a correlation of negative 0.97 that neither the ice cream industry nor the mattress industry has chosen to advertise. The obvious explanation — that ice cream makes you heavier and therefore more stable in bed — has not been peer reviewed. The less obvious explanation — that both trends reflect an aging population navigating conflicting health advice — is less funny but more accurate.

Per capita ice cream consumption in the US declined from roughly 23 pounds per person in 2005 to around 19 pounds by 2021, consistent with broader shifts toward lower-sugar diets and the proliferation of alternative frozen desserts. Deaths from falling out of bed, while rare, also declined over this period due to improvements in hospital bed design, fall-prevention protocols in care facilities, and better management of conditions like osteoporosis in elderly patients. Both trends are downstream of a health-conscious cultural shift and improved medical standards, particularly for older Americans.

Two declining curves will always find each other in a correlation matrix, regardless of whether they have ever been in the same room. The tragedy of bed-fall deaths and the modest retreat of the ice cream cone are both real phenomena; their relationship is purely numerical.