Stress and anxiety can have a damaging effect on our overall health, including male fertility. Take for example a recent study involving 193 men between the ages of 38 and 49 who were assessed by a subjective and objective scale including life events that led up to stress at work and in life. Semen samples provided by each male participant were analyzed by University of California-Davis technicians for sperm appearance, motility, and semen concentration. While men who reported stressful life events suffered from impaired fertility, stress at the workplace had no damaging effect on semen quality. Work stress, however, did lower the group's testosterone levels.