Which is not a benefit of good cardiovascular health? improvement in appearance increasing your self esteem the ability to manage stress stronger bone mass

I would say stronger bone mass is not. If you have good cardiovascular health, you look better, you feel better about yourself and you have less stress in your life.

stronger bone mass is a calcium issue not a heart issue.

answer; training;

you may having too much sleep.. a good night sleep consists of about 7 hours. more than that could be the reason you're still tired throughout the day.