Is it true that Oogenesis begins during puberty?

Why does scratching or itching bring out euphoric feeling when done? What postrenal conditions can cause kidney failure? Can you take Ativan if you have COPD? Is it bad if rings turn your fingers green? Are you pregnant if your period lasted only 2 days Feb 4 through 5 when it normally lasts 5 days and now I am late 4 days and my last normal period was from Jan 4 through 6? Beam-like processes of the inner face of the myocardium? How can you prevent cold sores? Where did the scabies mite originate from i mean are they from feces dirt decaying bodies etc No one seems to have the answer I know WHAT they are but where did they originally come from? What is anaerobic digestion process? Is human saliva poisonous? What does dainitness mean? How do I know if my jaw is broken? Where can ozone therapy for herniated disc be obtained? Is the nasal bone malleable? Aspergers syndrome cannot see yellow? Do you capitalize attention hyperactivity deficit disorder? Where is the conus medullaris located in adults? How do the digestive circulatory and respiratory systems serve a body cell in the big toe? Can wine make your eyes dilate? What does it mean if blood comes out of your pants?