Compare and contrast drugs and supplements. give 2 ways that they are similar and 2 ways they are different.

In the ways drugs and supplements are the same are they both have an effect of the body's nervous system and both are psychoactive substances. In the ways they are different, drugs are often used for overcoming a illness while supplements are not necessary and are optional. Hope I helped!

The answer is b. increased blood flow reduces nerve sensitivity

Anxiety disorders, attention deficit hyperactivity disorder (adhd, add), and autism spectrum disorder (asd). (source: )