Please choose the correct ending to complete the given sentence: Health: [header] How to strengthen your mind [title] Stick with hobbies that challenge you. [step] If something you're already doing consistently challenges you and keeps you engaged, it is strengthening your brain. In fact, your brain requires challenging stimulation to continue becoming more powerful.

Ending1: [substeps] Choose a hobby that you genuinely enjoy. For example, if you like to cook, try it with a glass of red wine, telling yourself you can cook as much as you want, but you need to rest or sleep. Ending2: Don't get discouraged if this becomes second nature. If this is not enough, consider becoming proficient in your field of study. Ending3: Hobbies that continually force you to do new things, like learning to play a new song, are ideal for working out your brain. [substeps] An important distinction to consider: playing a difficult song that you've already memorized is much different than learning a new song. Ending4: [substeps] Research shows that people who are engaged in new activities are more receptive to new discoveries than those who are not engaged in new activities. Doing the same same types of activities that your mind has been told to do will refresh your brain.

Answer format: ending1/ending2/ending3/ending4