New Galaxy S6 w/ Android 5.1.1 does not show Stress tracker in S Health app

[AC Question]

Just bought a factory unlocked Galaxy S6 32GB mode #SM-G920F with Android 5.1.1 and I simply can't find the stress tracker option in the S Health app although I do see other trackers like steps, heart rate, blood pressure etc.

Had updated the S Health app and that didn't work so did a factory reset with no luck. So now have the above mentioned Android os version with S Health ver. 4.2.0.0033

Would truly appreciate any guidance to resolve this; hope to hear back soon.

Thanks!