• DOI:10.1111/j.1600-079X.1986.tb00759.x
Corpus ID: 41436917

Rats on 22.5‐Hr Light:Dark Cycles Have Vaginal Opening Earlier Than Rats on 26‐Hr Light:Dark Cycles

@article{Lehrer1986RatsO2,
  title={Rats on 22.5‐Hr Light:Dark Cycles Have Vaginal Opening Earlier Than Rats on 26‐Hr Light:Dark Cycles},
  author={S. Lehrer},
  journal={Journal of Pineal Research},
  year={1986},
  volume={3}
}

• S. Lehrer
• Published 1986
• Biology, Medicine
• Journal of Pineal Research

Rats on 22.5‐hr light:dark cycles had vaginal opening significantly earlier than rats on 26‐hr light:dark cycles. This finding might explain the early menarche in blind girls: Their circadian rhythms, like those of rats on 22.5‐hr cycles, might be more rapid than normal. Thus a set number of cycles can occur in a shorter time than usual, allowing puberty to take place early.