WMC-Webinar126 Question 2

Distractors
True kyphosis can only be recognized with an x-ray or other bone imaging machine.
There is really no such thing as kyphosis.
We tend to focus on kyphosis in the spinal column, while the real kyphosis is in the ribs.
Key
A person can make a hyperkyphotic spinal curve appear “not so bad” by making some tweaks to his posture.
Question
What does “hidden kyphosis” mean?