People who suffer from phobias and disabling anxiety often feel afraid without knowing why. This appears to be due to the actions of the part of the brain known as the

One major similarity of freebase and crack cocaine is that they both can be smoked

Indicate whether the statement is true or false

While hearing aids can help in many situations, they are often rejected by older adults because of _____________________

a) expense b) maintenance c) sense that they signal frailty d) All of the above