Knowledge: Irritable Bowel Syndrome (IBS) can affect people of any age, including children, adolescents, and adults. However, Chronic fatigue syndrome is most commonly diagnosed in individuals who are in their 20s to 40s.

Conversation:
Do you know what Chronic fatigue syndrome is?
I know that the fatigue is not because of exertion or some other medical condition. It's essentially unexplained.
Any idea what causes it? Ive heard of it, and of course have felt fatigue just from everyday life, but I cant say its chronic..
No, doctors still do not know the cause.  It could be biology, genetics or in someone's head from what I understand anyways.
Can you tell me adults of which age suffers most from this syndrome?

Response: Yes, Chronic fatigue syndrome is most commonly diagnosed in individuals who are in their 20s to 40s.