HealthCentral heart-bloom

John Bottrell

Health Professional

John Bottrell is a registered Respiratory Therapist. He wrote for HealthCentral as a health professional for Asthma and Chronic Obstructive Pulmonary Disease (COPD).

Latest by John Bottrell

Woman using an inhaler.

How To Spot a Bronchodilatoraholic

Are you worried about overusing your inhaler? Read about some of the signs that show someone is overly dependent on their rescue inhaler.

Woman reaching for an inhaler.

5 Tips for Assessing Your Asthma Symptoms

Learn how to assess your asthma symptoms to help you decide when you should call your doctor or when you should decide to go to the emergency room.

Asthma medications.

The Top 10 Asthma Medicines

These top asthma medications have proved invaluable in treating asthma over the years. Learn more about how these medicines have shaped asthma care.

Senior woman using inhaler outdoors.
Living With

Here's Why Humidity and Cold Air Trigger Asthma

Every asthmatic should be aware that both humidity and cold air are two very common asthma triggers. So why is this? And what can you do about it?

Asthma medications.

Should You Use Expired Asthma Medications?

Happen to come across one of your lost inhalers or expired pills? When is it time to bite the bullet and swap out your old medications?

Promo Image

7 Tricks for Better Breathing

Modern medicine works great for people with lung diseases like COPD, but it’s not the only path to better breathing. Here are seven proven tricks to better breathing discovered by researchers, scientists, inventors, and people just like you.

HC promo logo

24 Things That May Cause Asthma

Asthma is a disease that’s been described in writings that go all the way back to 5,000 B.C. Despite it’s long history, asthma experts still struggle to understand why 10 percent of people develop this disease. Around 400 B.C. the Hippocratic writers ...

HC promo logo

11 Potential Causes of COPD

Infections, gender, and other factors can boost chances of the disease.

Promo Image

Wood Smoke Linked to Asthma and COPD

Fireplaces are a beloved part of any home, but new research shows some hidden risks.

HC promo logo

10 Links Between Poverty and COPD

Research published in January, 2014, suggests an inverse relationship with Gross National Income (GNI) and the incidence of COPD.