By virtue of the word "can" the statement is true. However those side effects, though probable, are merely potential and dependent on other variables.
You may not get shut down, but suppression is eminent. Your sex life may or may not be hindered. Additionally, many people do not experience joint problems or hair loss. But the potential for all these associated problems still exists.
And regardless of whether you experience these sides or not, Winny ONLY is still a poor choice and will likely leave you dissatisfied.

Lastly, why would you elect Prop for a first cycle? This is not recommended for proselytes.
M.