Hm... judging by the cover, this looks like absolute crap.
> Some studies have shown a continuous decline in semen quality since the beginning of the 20th century.
Studies also indicate a continuous decline in testosterone (in males) over 20th century. I'd welcome someone correct my biological knowledge, but I would guess that testosterone influences production of sperm, not the other way round. So they're probably studying the wrong thing.
> One postulated contributing factor is radio frequency electromagnetic radiation emitted from cell phones.
So... how do you then explain the decline from 1900 until 1990?!?
> Questionnaires accessing demographic data and characteristics of cell phone usage were completed by 106 men
Trying to do statistics on a small, ...
> referred for semen analysis
... biased sample, seriously?!
I'm too paranoidly afraid of the negative effects of radiation, but even I'm inclined to call bullshit on this study.
> Some studies have shown a continuous decline in semen quality since the beginning of the 20th century.
Studies also indicate a continuous decline in testosterone (in males) over 20th century. I'd welcome someone correct my biological knowledge, but I would guess that testosterone influences production of sperm, not the other way round. So they're probably studying the wrong thing.
> One postulated contributing factor is radio frequency electromagnetic radiation emitted from cell phones.
So... how do you then explain the decline from 1900 until 1990?!?
> Questionnaires accessing demographic data and characteristics of cell phone usage were completed by 106 men
Trying to do statistics on a small, ...
> referred for semen analysis
... biased sample, seriously?!
I'm too paranoidly afraid of the negative effects of radiation, but even I'm inclined to call bullshit on this study.