Learn More › As a firearms instructor for Fieldcraft Survival, I travel the country and see shooters from all walks of life training with some of the best holographic sights. Many of my students just ...

Looking Glass has also put together a couple of demo apps to showcase what's possible with iOS devices paired to its displays. One of them gives you an up-close look at 3D scans of historical ...

Dyspnea is the medical term for difficulty breathing or shortness of breath. It is a symptom of many conditions that affect the respiratory system. Shortness of breath can range from mild and ...

Emphysema happens when smoke from tobacco or other pollutants slowly damage the tiny air sacs in your lungs called alveoli. Normally, some 300 million alveoli help bring oxygen into your body and ...

Breathing sound that is high-pitched and tight A purring or whistling sound You can hear it best when your child is breathing out Use this guide only if your child has not been diagnosed with asthma ...

A narrowing of the smallest airways in the lung (bronchioles) causes wheezing. This narrowing results from swelling caused by a virus. The respiratory syncytial virus (RSV) causes most bronchiolitis.

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The consumption of fruit rich in vitamin C was examined in relation to wheezing and other respiratory symptoms in cross sectional and follow up studies of Italian children. METHODS Standardised ...

When treating shortness of breath, it's important to think about what may be causing the condition. While it may be a normal response to overexertion, it could be linked to an underlying health ...

Pneumonia symptoms can vary based on the cause and severity of the lung infection. For some, it might feel similar to the flu or be barely noticeable. For others, pneumonia can cause severe ...