Why did Arnold Schwarzenegger’s mother-in-law decide to inform her daughter about risks linked with steroids?

Maria Shriver didn’t get pregnant during the first three years of her marriage to the prominent American bodybuilder Arnold Schwarzenegger. Her mother was in trouble. Since the bodybuilder used steroids, she feared that these drugs could cause infertility in him. That’s why Arnold Schwarzenegger’s mother-in-law brought a scientific report about steroids to her daughter. The report enumerated possible adverse effects of steroids, including infertility.
Arnold Schwarzenegger affirmed that he found this report on the desk of his wife occasionally. Thus, the bodybuilder read it. The bodybuilder laughed a lot. The bodybuilder claimed that his mother-in-law was out of control.
But the bodybuilder’s mother-in-law was in troubled without any reason. Her daughter and Arnold Schwarzenegger became parents of four kids. Moreover, Arnold Schwarzenegger got a child as a result of his extra-marital relations. Thus, it was obvious that steroids didn’t have any negative impact on reproductive system of this man.
Do steroids cause infertility in male consumers? These preparations suppress natural production of the hormone testosterone. That’s why men who take these preparations may have infertility. But it is necessary to know that this undesirable reaction is not permanent. When males stop administering steroids, their natural secretion of testosterone is restored. Thus, this undesirable consequence disappears.  
The autobiography written by Arnold Schwarzenegger reveals many interesting aspects related to steroids. This prominent bodybuilder applied steroids during his competitive career. Anabolic steroids helped him to succeed. Administration of these substances was not prohibited in professional bodybuilding, when Arnold Schwarzenegger competed.