As Neils Bohr showed, it is possible for electrons to move between energy levels. Light contains energy. If a photon of light strikes an atom, it is possible for the energy in the light ray to be transferred to one of the low energy electrons moving around the atomic center.
Spotting before a period is due â reasons for spotting before a period can be implantation, from a cyst or a short luteal phase and impaired egg quality. Spotting in between cycles â this is a difficult term to answer but often means your cycles are growing shorter; often with perimenopause.
But, before we get down to business, remember that the main cause for your period not to arrive is a pregnancy. So, if your period doesnât arrive, check to make sure itâs not actually a baby on the way. Now, letâs look at the most common causes of irregular periods: Eating disorders, like anorexia and bulimia.