Coffee is good for you.
"Suggest" is not a very convincing word to me. Sounds more like a hypothesis than a conclusion. I highly doubt any ethics board would approve a double-blind clinical trial exploring how much coffee consumption is required to kill a human fetus in utero. Who are these monstrous Danish scientists!?
Fun fact about THC though: "[...] babies of women who used cannabis at least once per week before and throughout pregnancy were 216 g lighter than those of non-users, had significantly shorter birth lengths and smaller head circumferences."
It's right there in the conclusion "may be associated" = "they do not know if this is true at all".
Next step would be to run a double-blind clinical trial, and have an unknown-half of the subjects smoke pot and compare that to the control to test if their hypothesis is true or not. Until then, it's only conjecture.
What are you basing that claim on? None of the studies mentioned specifically in the wikipedia section specifically mention people in their 80's, and many of the studies look at total mortality.
>The coffee bean is actually a poison that the coffee plant uses to deter herbivores.
I prefer to base my decisions on epidemiological studies, than arbitrarily applying the label "poison" to things