No, periods are a natural part of femalelife. They happen when more than likely least expected. Normally the time that they happen is all down to genes, aka depending when your mum, sister, auntie, grandma ect started. It's best off that you don't start anyways, its awful.
Hope this helped:)
environmental factors e.g. epigenetics
Environmental medicine is a field that studies exactly how environmental factors influence disease
by making you feel dizzy !
Culture Enterprise environmental factors process assets
Very few environmental factors absolutely cannot influence your health. Perhaps only smells cannot have a strong impact on your health.
Environmental factors influenced the development of TCM included technological advancements and an enabling political environment.
Environment factors in cell differentiation influence the expression of genes. A few examples of environmental factors are chemicals, drugs, and temperature.
Nurture
dioxide and nitrogen
Environmental analysis is the study of the organizational environment to pinpoint environmental factors that can significantly influence organizational operations.
genetics, nutrition, and environmental factors are just a few
Environmental factors like infections, drugs and exposures to radiation