Yes, stress, diet, travel, exercise, weight gain or loss, and illness, can influence the timing of a female's cycle
Its not an illness....
Some females become physically ill, others just experience annoying discomfort.
Yes!
usally
Human females have menstrual cycles so that they can get pregnant, and thus continue the human race! During the menstrual cycle a woman will ovulate and the uterus will prepare itself for the possibility of pregnancy, if pregnancy doesn't occur the uterus lining sheds and the process starts again.
It has to do with the hormonal level .
Yes. It is a natural occurrence in every female mammal.
The typical menstrual cycle in human females is around 28 days long. Everyone has different menstrual cycle lengths, also cycle lengths can vary by a few days from one to the next.
Only females over 6 months of age will have a menstrual cycle. This will happen once every six months and last for 10-14 days.
No it is not true. The menstrual blood comes from the Uterus and flows out of the vagina.
Factors influencing birth rate include access to healthcare, education, cultural norms, and economic conditions. Factors influencing death rate include healthcare access, sanitation, nutrition, lifestyle factors, and disease prevalence. Socioeconomic status, government policies, and public health infrastructure also play a significant role in both birth and death rates.
Not necessarily, but if you don't know why you're not having a menstrual cycle and you should be, then see a doctor ASAP.