Many people are not aware of the complete spectrum of health risks from alcohol and sugar or the role they play in degeneration of discs and bones. Most studies do point out the harmful effects of sugar in diabetes and obesity, however, alcohol seems to be studied as to its benefits more often than its risks.
1.With only cardio you will go from a big pear to a smaller pear but you will still be a pear. Weights will help change your body shape not to mention all the health benefits.
2.Weight bearing exercises are great to help against and prevent osteoporosis. It also helps your nervous system stay alert and active.