It is caused because of a rise in estrogen degrees (female hormonal agents) and decrease in testosterone levels (male hormonal agents) in the male body.
Se on aiheuttanut, koska nousu estrogeenin astetta (naaras hormonaaliset aineet) ja lasku testosteronitaso (uros hormonaaliset tekijät) mies elin.
How many English words do you know?
Test your English vocabulary size, and measure how many words you know.