Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to start running [title] Start small. [step] Before you start running every day, you should establish a base level of fitness. Running is great for you, but it is physically punishing, and it can wreak havoc upon your body if you aren't ready.

Ending1: Start small and gradually increase the number of miles (or kilometers) you run each day until you are within these recommendations. [substeps] For example, many people find it helpful to start running 5 miles (260 km) a day with two days in between in order to burn off some sweat. Ending2: If you start running with no prior exercise habits, you risk hurting yourself before you get into the swing of a routine. [substeps] Consider starting with daily walks and progressing gradually into running. Ending3: [substeps] Start with a simple three-mile run at the beginning of the day, or a five mile run at the end of the day. Or just take a little break from your workout and do one fitness challenge or power-up. Ending4: The best way to start is to do moderate stretches and plenty of rest as much as possible before beginning to run every day. [substeps] There are as many different different types of physical fitness as you could start with.

Answer format: ending1/ending2/ending3/ending4