Summarize this article:

Losing weight means burning more calories than you consume. Losing 5 pounds in one week translates to 17,500 calories lost.  A combination of cardio and resistance training (weightlifting) leads to higher weight loss than either activity alone. But if you must choose one, those doing only cardio lose more than those doing only resistance training.  Consider High Intensity Interval Training (HIIT). That's when you alternate between going all out and taking it easy. For example, you'd run in a dead sprint for 30 seconds followed by 60 seconds of jogging. This shortens your routine and burns more fat, believe it or not. In addition, when you're chilling on the couch, your metabolism stays high and you'll be burning more calories up to 24 hours later.HIIT is great for those with hectic lives — it only takes about 15 minutes. Just remember you still need to warm up and cool down. Stress is a huge cause of overeating. 60 minutes of yoga (done in the comfort of your living room during your favorite show) burns 180 – 360 calories — but that's not all. Studies have shown that practicing yoga leads to a number of benefits:  Reduced stress Increased body awareness (specifically hunger and satiety) Mindful eating Switching up your routine will keep you from plateauing and keep your body from getting used to your workout.  Varying your routine will help you stay motivated, a huge factor in success. Turn social events into opportunities for calorie burning. Skip the movies and go for frisbee golf, tennis, or swimming. Any activity can turn into exercise with the right mindset.  Opt for the stairs instead of the elevator. Use this as a reason to do chores. Do the gardening, wash your car — stay active! Walk or ride a bike to work or school. This also reduces your expenses and helps the environment, too! You may not see results immediately. Be patient.  As your body gets accustomed to the work out, kick it up a notch. Challenge yourself. Only do as much as you can handle. If you feel dizzy or faint, stop.

Summary:
Develop an exercise plan. Take up yoga. Keep it fun. Find small opportunities. Stick to it.