low mass stars never obtain the high temperatures and pressure to fuse helium. so its only energy source is hydrogen fusion. thus low mass stars never become red giants, they resume stable main...
If its high mass it ends with neutron star of black hole and if its low mass it ends as a black dwarf for all stages check here http://wiki.answers.com/Q/What_are_the_stages_of_a_star's_life_cycle
Facing The Final Stage of Life Some people have cancer that is in an advanced stage or can no longer be treated successfully and they must face the fact that they will probably die. This is scary for...