Please choose the correct ending to complete the given sentence: Health: [header] How to lose weight with exercise dvds [title] Talk to your doctor. [step] Make an appointment to speak to your doctor prior to starting any new exercise routine. Not all physical activity is safe for everyone, so you need to make sure that your activity plan is safe and appropriate for you.

Ending1: If you know you are overweight, you can say " no " to exercise videos so that there is a general expectation that you will lose 45% of your weight by the end of your workout. If you are exercising many times or you wear weight objects on your body, ask if you should monitor them. Ending2: [substeps] If you currently have a medical condition or injury, talk to your doctor about what types of activity are appropriate for you. They may give you some restrictions, but also provide guidelines of what is acceptable and safe. Ending3: [substeps] Some exercise dvds are designed just for people who are diabetic or overweight. For example, you can get a weight loss class at your gym or join a weightlifting class at an exercise studio. Ending4: Take note of what activity activities help you do best and what doesn't, and stick to those as best you can. [substeps] For example, if you don't normally exercise, but you recently turned 30 weight loss workouts into physical fitness, talk to your doctor about healthy methods to build up weight.

Answer format: ending1/ending2/ending3/ending4