John Riddle

John Riddle

Patient Expert

John wrote for HealthCentral as a patient expert for Allergies, Anxiety Disorders, Diabetes, Erectile Dysfunction, and Sleep Disorders.

Latest Articles by John Riddle

Young man jogging outside in cold weather.
Skin Health

How Men Can Protect Their Skin in the Winter

When it comes to knowing how to protect their skin during the winter months, most men are clueless. Here are some helpful tips.

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Erectile Dysfunction

7 Questions About Erectile Dysfunction

Medical researchers estimate that between 18 and 20 million American men experience some type of erectile dysfunction.

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Pre-Diabetes Basics

Risks, symptoms, diagnosis and prevention Definition Pre-diabetes is a health condition that carries no symptoms. Commonly referred to as “impaired glucose tolerance,” approximately 54 million people in the United States twenty years and older have t...

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10 Tips for Managing Stress to Avoid Asthma Attacks

Stress can induce asthma attacks though no one is sure how. Managing stress can help minimize asthma symptoms. Stress can wreck havoc on your health. And if you have asthma, you no doubt know that stress can cause asthma symptoms. The signs and sympt...

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Sleep Disorders

Is Stress Causing Your Sleep Problems?

Most Americans do not get enough sleep each night. Medical experts say that you should get between 7 and 8 hours of sleep, but recent statistics revealed that many people are getting less than 5 to 6 hours.

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How To Find Hidden Food Allergens

Revised in January of 2006, the Food Allergen Labeling and Consumer Protection Act of 2004 requirements take some of the guesswork out of label reading, helping you easily identify foods that could cause an allergic reaction. But be mindful of hidden ...