You can attribute whatever you want in the absence of the ability to look at data and you would be certain, and certainly wrong. There has been no change in the obesity or the diet or the exercise of Americans in the last two years. You cannot blame a sudden decrease in life expectancy on this completely unchanged lifestyle.
Those above who blame the shots are completely wrong. Every single data point in every single country has produced the same finding. Shots save lives. Period. States and counties with the highest rate of acceptance of shots consistently had the lowest increased death rates during the pandemic. States and counties with the lowest rate of vaccination had higher excess death.
This is found over and over. Recently here:
COVID-19 and Excess All-Cause Mortality in the US and 20 Comparison Countries, June 2021-March 2022 | Public Health | JAMA | JAMA Network
older study here:
County-level vaccination coverage and rates of COVID-19 cases and deaths in the United States: An ecological analysis - The Lancet Regional Health – Americas
Just stop with the stupid ignorant claim that it is the shots causing excess deaths. You are wrong, dangerously wrong.
The CDC here and similar organizations in other countries has ongoing data which accurately predicts about how many people in each age/gender/race etc will die in a normal year. They can then look at the real deaths and see if the expected pattern held, or fewer deaths or more.
This is not the same measure as life expectancy but it is related. A healthy senior citizen dying of covid is an excess life lost, but does not move the average life expectancy much. You have to loose a lot of older people to see a big drop in life expectancy. But a million will do it.
A 20 yo dying of a drug overdose is also an excess life lost but has a much greater impact on overall life expectancy [years of potential life lost]. But recently it is Covid deaths which have had the major impact on life expectancy. Data for 2022 is not yet available.
The CDC regularly updates on these problems. You can subscribe to MMWR for free and get the weekly report in your email.
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The declines in life expectancy since 2019 are largely driven by the pandemic. COVID-19 deaths contributed to nearly three-fourths or 74% of the decline from 2019 to 2020 and 50% of the decline from 2020 to 2021. An estimated 16% of the decline in life expectancy from 2020 to 2021 can be attributed to increases in deaths from accidents/unintentional injuries. Drug overdose deaths account for nearly half of all unintentional injury deaths."