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That knowledge, based on prior research examining the association between marijuana use and sperm quality, made Harlow and the other members of the research team curious about whether marijuana exposure could damage a mans DNA or lower the quality of his sperm enough to result in a higher risk of his partner having a miscarriage

Manning criteria seems to yield higher values when compared to either the Rome I or Rome II criteria

The problem with tobacco is that it appeals to the user at multiple levels, from the physical to the emotional and social cravings that often underlie the adoption of smoking

Some people even collect them as monuments or for fun