​________ are regularly occurring experiences that can harm our well-being, even our sex lives.

_________ refers to the reasonably stable patterns of emotions, motives, and behavior that distinguish one person from another.​

_________is the swelling of thegenital tissues with blood, causing erectionof the penis and swelling of the areasurrounding the vaginal opening.​

The drive-reduction theory of Hull states that:

​ _________ such as pathogens, injuries, age, gender, and a family history of disease may strike us as the most obvious causes of illness.

​The immune system is able to fight off foreign substances like pathogens because of the functioning of white blood cells called _________.

_____ individuals are people who are sexually aroused by, and interested in forming romantic relationships with, people of the same gender. ​

​Overtime work, assembly line labor, and exposure to conflicting demands can all contribute to _________.

_________ is the state of being satisfied.​

_____individuals are people who are sexually aroused by, and interested in forming romantic relationships with, people of the other gender.​