Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to keep fit [title] Start walking, jogging or cycling. [step] No matter what your speed is, walking, jogging and cycling are very important parts of a healthy lifestyle as they are activities that keep your heart and lungs active and your blood flowing. If you need to keep your knees strong or have body aches and pains, then cycling may be a better solution.

Ending1: [substeps] If cycling, only do it for a 1-2 hours a day. If you only need 10 hours, then either get up to a hour or as much as 3 hours a day, and aim to lower your total intake each day. Ending2: [substeps] Come up with a daily walking, jogging or cycling routine that fits with your schedule (i.e. go for a jog everyday at 6:00 p.m.). Ending3: Exercise regularly and for as long as you can. [substeps] A 30 minute run a day for two weeks is a better choice. Ending4: Cycling doesn't have to be faster than jogging, however it should have a personal and professional style which allows you to express different emotional states and experience positive thoughts that people struggle with. [title] Look for ways to exercise without dancing.

Answer format: ending1/ending2/ending3/ending4