When Canada legalized cannabis in 2018, its effects on human health were all over the news. Cyntia Duval, a women’s health researcher at the University of Toronto at the time, wondered how its consumption might affect female fertility. To her surprise, there was almost no information on the subject — though there was plenty of data on marijuana’s effects on pregnancy and male fertility.
Chemicals in cannabis may push eggs to become ready for fertilization. But this may come at a cost: more eggs with the wrong number of chromosomes, Duval and colleagues now report in a study published September 9 in Nature Communications.
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