You can't seem to buy anything these days that doesn't include a Caution, Disclaimer, or Caveat. I thought it might be time to dig out a Yoga Caution I once wrote:
The practice of yoga may cause your muscles to strengthen and/or
increase in flexibility. Prolonged use of certain postures may make it
difficult for you to lose your balance while standing, sitting, walking,
or all of the above. Do not do yoga if you (a) do not wish to interrupt
your aging process and (b) are looking
forward to a steady decline in your physical and mental capabilities.
Extensive use has been known to cause altered states of joy, peace and
tranquility. Do so at your own risk of enjoyment.