Some exercises help build muscle and burn fat quickly, experts say. Cut back on cardio and target muscle groups with weight lifting.
HIIT (High Intensity Interval Training), The Nutrition Source
Home Workouts: 100+ Free At-Home Workout Routines
Short & Intense Workouts are Proven More Effective than Longer Ones – DMoose
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The 4-Week Plan for a Shredded Summer Body - Muscle & Fitness
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Getting Started: Tips for Long-term Exercise Success
Best Exercises for Women Over 50