No Proof COVID-19 Vaccine Affects Menstruation or Fertility
No Proof COVID-19 Vaccine Affects Menstruation or Fertility
Following vaccination, some women claim their periods have changed, leading to rumors about how the shots affect recipients’ reproductive systems, and even others’ by proxy.  
No Proof COVID-19 Vaccine Affects Menstruation or Fertility
No Proof COVID-19 Vaccine Affects Menstruation or Fertility

Following vaccination, some women claim their periods have changed, leading to rumors about how the shots affect recipients’ reproductive systems, and even others’ by proxy.  

Following vaccination, some women claim their periods have changed, leading to rumors about how the shots affect recipients’ reproductive systems, and even others’ by proxy.  

menstruation
Menstrual Cycles Intermittently Sync with Moon Cycles: Study
Menstrual Cycles Intermittently Sync with Moon Cycles: Study
Asher Jones | Feb 5, 2021
A long-term study finds that these rhythms align at certain times of women’s lives, shedding new light on the controversial idea that lunar phases influence human reproduction.
The Genetics of Menarche
The Genetics of Menarche
Kerry Grens | Jul 24, 2014
Hundreds of loci in the genome are associated with the age at which a girl starts menstruating.