Now, I understand, most people are not athletes and many athletes do not sustain such high intensity levels I just described during their training or actual competition. (perfecthealthdiet.com)
Long story short, for a while (before I really knew any better) I worked out at such a high intensity for so long, while depriving myself of proper food and nutrient intake, that my body totally freaked out and decided not to have a period. (afitphilosophy.com)
One possibility is studying effects of illuminating nuclei with such high intensities of optical photons. (laserfocusworld.com)