menstrual cycle

A crime that was difficult to avoid for people who had given their health information to big-tech through supposed health apps that monitor menstrual cycles.

Hormone levels change during the menopause - most significantly oestrogen, which controls the menstrual cycle and contributes to a number of other bodily processes.

She says it may take women a few menstrual cycles to become accustomed to using one, and stresses wearing a cup should not hurt.

Last month, the inaugural group of girls, aged 13 and 14, took part in physical testing and research into how the menstrual cycle can affect performance.

Looking for a non-hormonal alternative and wanting to avoid the experience of having a coil fitted, she chose to use the menstrual cycle tracking feature on her iPhone Health app.