Many people have their own idea of what exercise is best, but major life changes might make them decide it is time for a better program. They could be focusing on cardio exercises, but they could see their muscle strength diminish if they ignore weight training. It is always best to consult an expert when making major changes to any important facet of life, so talking to a doctor or a physical trainer could be a good way to get started on improvements.
Every person is different from those around them, so each exercise program should take into account a person’s strengths and areas that need improvement. For those who have spent years working on improving their cardio functions, lifting heavy weights could cause injury. They will need to work up to their goals in a manner that does not cause injury, and this is a good reason to take the time to learn how best to do it safely.