The term "male menopause" is sometimes used to refer to
the sudden loss in fertility in a middle-aged man.
the sudden drop in testosterone that generally occurs at about age 50.
a dip in testosterone in response to anxiety or sexual inactivity.
impotence when a man is aware of his wife's menopause.
a dip in testosterone in response to anxiety or sexual inactivity.
Psychology
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The natural sex ratio at birth is close to ______
Fill in the blank with correct word
Psychology
Recent research in both humans and animals has shown that __________, which is secreted by __________, acts in the body to prevent excessive weight gain.
a. glycogen; the brain b. glucose; the liver and the pancreas c. CCK; the liver d. leptin; fat cells e. CCK; fat cells
Psychology