Exercise may reduce prostate cancer risk

That would be conventional exercise. That is why there is uncertainty, as in "may."

To really make a difference you have to train.

The idea that physically active men might be less likely to develop prostate cancer has been controversial. Some studies say yes, others no — and a couple even suggest that exercise leads to more cancers.

Now a San Antonio researcher's review of dozens of studies shows regular exercise probably lowers the risk — a little.

Here is some training that apparently works: