1. Running: Running is a simple and effective aerobic exercise, which can help you burn calories and improve heart and lung function. You can run indoors or outdoors, and the time and speed depend on your health and goals.

2. Cycling: Cycling is a low-impact aerobic exercise that can help you burn calories and improve cardiovascular health. You can ride a bike indoors or outdoors. The time and speed depend on your health and goals.

3. Swimming: Swimming is a systemic aerobic exercise, which can help you burn calories and improve heart and lung function. Swimming can also help you relax and relieve stress.

4. Yoga: Yoga is a low-impact full-body exercise that can help you strengthen your core muscles, improve flexibility and balance. You can practice at home or take a yoga class.

5. Weightlifting: Weightlifting is a training method without equipment, which can help you strengthen your muscles, increase your metabolic rate and improve your body shape. You can lift weights with dumbbells or your own weight.