Please choose the correct ending to complete the given sentence: Health: [header] How to gain fat [title] Visit the doctor. [step] Before making any kind of dietary or bodily changes, you should get a full evaluation from the doctor. If you have a preexisting condition like high blood pressure or high cholesterol, your doctor may advise against gaining weight.

Ending1: Always take your doctor's advice seriously before making this kind of change. [substeps] Certain medical conditions will require you to keep your weight up. Ending2: The doctor might think that you're overweight or obese. This might result in the doctor recommending additional weight, which you should avoid. Ending3: [substeps] Overweight people may require additional tests to be evaluated to see how far that journey has progressed. Weight gain in childhood can be a clear sign of an adult developing an active, athletic lifestyle. Ending4: [substeps] If you've recently undergone surgery, you may be overweight. The doctor may suggest doing x-rays or assessing your height or being evaluated by an osteopath.

Answer format: ending1/ending2/ending3/ending4