The analysis of blood samples from over 8,000 women revealed that vapers and tobacco smokers had lower levels of AMH (a hormone that indicates the number of eggs left in the ovaries) compared to non-vapers, across all age groups.

A study by women's health firm Hertility, based on data from 325,000 women in the UK, found that approximately 25% of those trying to conceive regularly or occasionally vape.

The study's author, Dr. Helen O'Neill, a lecturer in reproductive and molecular genetics at University College London and the CEO of Hertility, advised women to quit vaping to improve their chances of getting pregnant.

The study is the first to show a link between fertility and vaping in a large population.

The text discusses a study that found decreased levels of Anti-Mullerian Hormone (AMH), which is used to evaluate ovarian egg reserve and fertility, in women who vape compared to non-vapers.

The report also revealed that 7% of the women surveyed used recreational drugs and 40% consumed alcohol weekly.

Researcher O'Neill warned that attempting to drink in moderation can lead to excessive alcohol intake.