system
Given the following post, respond as if you're commenting on Reddit:
human
Any way to logically explain how Werewolves can undergo nearly spontaneous metamorphosis?

Werewolves of the Underworld variety or similar. This always bothers me when dealing with Werewolves in fiction. The gain/loss in mass doesn't make sense. Rapid changing of bones, teeth and fur could maybe be possible at the cost of extreme pain if the "materials" were stored somewhere.
gpt
Obviously, the sun light, when reflected off the moons full surface, changes in wavelength to induce transformation in the werepeople. The muscles expand by rapid mitosis, also brought onto by a chemical reaction between the moon and the mutated gene in werepeople. The hair comes from the extra protien they store while in their dormant form.