Snippet from the article:
For some men with prostate cancer, hormonal therapy to beat the disease could be safely cut from three years to half that time, a new clinical trial suggests.
When men have cancer that is confined to the prostate gland but at high risk of worsening, one treatment option is radiation therapy plus drugs that cut testosterone levels, because this male hormone feeds the cancer.
Right now, doctors routinely give that hormonal therapy for two to three years, during which time men may suffer unpleasant side effects.
But that routine is based on a clinical trial from the 1990s that found that adding three years of hormonal therapy to radiation could cure certain prostate cancers. That doesn’t necessarily mean three years is ideal.
Read the rest — Could Duration of Prostate Cancer Hormone Therapy Be Halved?

The Norwood hair loss classification describes the variations in male hair loss patterns. It is not the progression or stages one goes through. You can look like you have a full head of hair, but still be a Norwood 6 if you show the thinning pattern. Some may be a Norwood 3 and be that way for the rest of their life. In other words, Norwood 3 rarely, if ever, progresses to a Norwood 6.