John Riddle

Patient Expert

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

Latest by John Riddle

Young man jogging outside in cold weather.

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.

Sweaty man headed to showers after workout.
Living With

Rashes Men Get (and Don't Like to Talk About)

Men who work out and sweat are at higher risk of developing skin rashes. John Riddle explains some of the common rashes men get and how to prevent or treat them.

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Living With

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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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. If you are not getting enough sleep, it can ...

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What Are Your Stress and Anxiety Triggers?

No matter how hard you try, stress will sneak into your life when you least expect it. Whether at home or on the job, there will be times when stress will rear its ugly head. If you find that your stress level is at the boiling point more often than ...

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How to Get the Best Erections

Getting in shape is a challenge for many people, especially men. And keeping your sex life in shape is just as important. Every man, whether they admit it or not, is interested in having the best erections possible. There are a few things you can do ...

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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 ...

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Reading Food Labels With Food Allergies: Look Carefully!

People with food allergies need to be diligent about reading food labels, and the government has made the task a little easier. Food labels can help you compare the nutrient content of similar foods, as well as see how the food fits into your dietary ...