Personal trainers frequently get asked for the best exercises to flatten the stomach. While ab workouts can help with that, they also provide so much more than the aesthetic of a toned stomach area.

Aerobic exercise, or cardio, elevates your heart rate with movements that activate your body's large-muscle groups. When done in the water, this type of workout offers many proven benefits, including ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...