steroid hormones is present in human body but when we take steroids from outside we have sideeffects why ??
Steroid hormones which are present in our body are secreted by glands present in our body . These glands are activated on the command of pitutary gland present inside the brain . But if you take steroids from outside side effects takes place because these are chemically created by human beings which are artifical and quite strong compared to the hormones present inside our body.