Marijuana may damage oocytes — unfertilized eggs in female ovaries — in ways researchers worry may lead to infertility, miscarriage and possible genetic defects in babies, new research has found.

When closely related species mate, their offspring sometimes survive but cannot reproduce. This pattern often affects males first, with hybrid males frequently failing to produce functional sperm even ...

Bottom line: This shows a possible lab signal, not proof that cannabis users struggle to get pregnant or have more miscarriages. The TV piece said “infertility, miscarriages, genetic defects.” The ...

Several children in the UAE, facing developmental delays and muscle weakness underwent standard genetic tests only for the ...