Bryan Johnson· Author
So the studies on heavy cocaine use have shown a risk of death increased by about 4 to eight times higher than people who don't use cocaine which is about a 20 to 40% reduction in life expectancy.
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We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
So the studies on heavy cocaine use have shown a risk of death increased by about 4 to eight times higher than people who don't use cocaine which is about a 20 to 40% reduction in life expectancy.
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So using cocaine once a day equivalent to about 10.8 years of life lost on average.