The statement about ADHD that is true is: "ADHD has no clear physical symptoms that can be detected via an x-ray or blood test"
<h3>What is ADHD?</h3>
This is an acronym for a kind of mental disorder that is called Attention Deficit Hyperactivity Disorder (ADHD).
Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental psychiatric condition.
It is characterized by challenges concentration, excessive activity, or difficulty restraining behavior that is inappropriate for a man's age.
Learn more about ADHD at;
brainly.com/question/10002219
#SPJ1
Explanation:
1: This idiom is a descendant of the above. It chiefly means to go to bed in the sense of stopping the activity one has been doing for the night. (I'll answer all correctly if you mark me "brainlist", notify me if you choose.)