Latest by Eli Hendel, M.D.

Understanding Eosinophils: The White Blood Cell Quiet Giants

Eosinophils are associated with so many different conditions. Learn how this type of white blood cell has become a crucial marker in medicine.

Nasal Brushing: An Emerging Asthma Diagnostic Technique

Nasal brush tests may help diagnose asthma by identifying a specific set of genes. Read about the research behind this test and how it may affect future treatments.

Secondhand Marijuana Smoke a Danger to Kids

Secondhand marijuana smoke exposure may be more dangerous previously thought, especially for children living in close quarters with smokers.

Missed Diagnosis: A Race Car Driver's Journey With Narcolepsy

How is it possible for someone to live with narcolepsy for years before being diagnosed? And considering all the symptoms that typically interfere with quality of life, how is it possible for a person not to seek a medical evaluation to identify a cl...

What Exactly is Narcolepsy?

Why is is that people with narcolepsy have trouble staying awake?

Could I Have Narcolepsy?

It’s important to identify and recognize symptoms that point to a diagnosis of narcolepsy. Do you have these signs?

Thunderstorm Asthma: How Weather Can Affect Allergens

Have you ever wondered if your asthma may be extremely sensitive to weather changes like thunderstorms? Learn how storms are tied to allergens in the air.

What is Valley Fever?

Learn more about valley fever, a strange and rare fungal infection of the lungs.

What's the Link Between Daytime Sleepiness and Risk of Dementia?

As a sleep medicine expert, Dr. Hendel thinks it’s worth asking if there’s an association between dementia and the consequences of sleep instability.

Dangers of Vaping: What You Need to Know

E-cigarettes, or vaporizers, are increasingly popular with young people. Learn about the dangers of vaping, including exposure to toxic metals and acute respiratory illness.