What you need help with???
It is true because heart attack is because of stopping of heart beats which will
I would say that if she is being mean you can first try to talk it out with her (because relationships may take work sometimes and if she is really important both of you will be willing to put in the work), but if that doesn't go well and you really don't think it is going to work you should go to your other friends or family for support especially if she was a very important part of your life.
A sedentary lifestyle means you don't move anywhere. Similar to coral or sponges.
Natural disasters can be split in three categories: hydro-meteorological disasters, geophysical disasters and geomorphologic disasters. i hope this helps