Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to lose weight fast with exercise [title] Do 1-3 days of high intensity exercises or interval training each week. [step] Try to rework your exercise plan if you workout at a moderate intensity or are only doing steady-state cardio for your workouts. [substeps] Higher intensity exercises and interval training have been shown to help support weight loss better than steady-state cardio.

Ending1: Doing high intensity exercises and interval training every day can lower your heart rate which in turn can help maintain bone health and prevent you from growing bored if you stop exercising. [title] Do 30-60 minutes of intense cardio daily. Ending2: Be sure to do 1-3 days of high intensity workouts each week when you're in a fast paced routine. This can help kick that fast-paced, low-intensity workout routines into high intensity mode for you. Ending3: Longer periods of slow, steady exercise may help boost your bmr levels. Aerobic workouts and interval training are particularly helpful since they can help improve brain and heart function. Ending4: Including a few days of higher intensity exercises can help your body burn more calories and more fat per exercise session. If you are unsure of what pace you're maintaining, judge by how well you are able to keep up a conversation.

Answer format: ending1/ending2/ending3/ending4