Please choose the correct ending to complete the given sentence: Health: [header] How to feel refreshed [title] Start an exercise routine. [step] If you're looking to feel energized and refreshed on a regular basis, exercise is a big part of the equation. One way exercise works to make you feel refreshed is it reduces stress and helps you expend anxious energy.

Ending1: Exercise is appropriate for your lifestyle at any stage of a day. Do at least 30 minutes of aerobic exercise three to five times a week-15 minute bursts once in the morning and 30 minutes afterwards before bed. Ending2: [substeps] To feel like you have more energy, try jumping in the air instead of thinking about things. Keeping your mind on the now might help you to feel wake-up and alert of the day ahead. Ending3: Exercise can be a great way to go, to remind you that you're feeling refreshed. [substeps] Try taking a walk, doing a kick-turn, or doing a team sport. Ending4: Try to work a 30-minute exercise session into your schedule 5 or 6 days out of each week. [substeps] Start small by taking two 15-minute walking breaks at work every day.

Answer format: ending1/ending2/ending3/ending4