Coconut water: Healthy drink or hype?
Interest in coconut water has skyrocketed. The drink, which is the clear juice inside the coconut, is low in sugar and calories, and it contains natural electrolytes, such as potassium, sodium and manganese. It's also promoted for its hydrating properties, but is it better than plain water for quenching your thirst after a workout? Learn more from Katherine Zeratsky, a Mayo Clinic dietitian.

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Also in today's tips ...

Cardiac rehabilition: An overview
Cardiac rehabilitation is designed to improve your health and help you recover from a heart attack, other forms of heart disease, or surgery to treat heart disease. It often involves exercise training, emotional support and education about lifestyle changes to reduce your heart disease risk. Find out more about cardiac rehabilitation and whether it might be right for you.

Preventing runner's diarrhea
Don't let diarrhea during or right after a run keep you from exercising this summer. The cause of runner's diarrhea isn't clear, but contributing factors likely include the physical jostling of the organs, decreased blood flow to the intestines, changes in intestinal hormone secretion, increased amount or introduction of a new food, and prerace anxiety and stress. Simple dietary changes often can help you avoid the condition, though. Learn more from Dr. Edward Laskowski, co-director of the Mayo Clinic Sports Medicine Center.

Job burnout: How to spot it and take action
Job burnout is a special type of job stress — a state of physical, emotional or mental exhaustion combined with doubts about your competence and the value of your work. Are you suffering from job burnout? Know the signs and risk factors, and consider these steps to handle your situation.

Know the symptoms of pink eye (conjunctivitis)
Pink eye, or conjunctivitis, is an inflammation or infection of the transparent membrane (conjunctiva) that lines your eyelid and covers the white part of your eyeball. It is commonly caused by a bacterial or viral infection, and treatment usually focuses on symptom relief. Because pink eye can be contagious, early diagnosis and treatment can limit its spread. Do you know the symptoms of pink eye and when to seek medical care?

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