Dry eye disease can result from reduced tear production or an unstable tear film. A critical factor in maintaining a healthy tear film is the proper function of the meibomian glands—small glands along the eyelid...

Nebulizers are devices that help you breathe better by converting liquid medication into a fine mist that can be inhaled. They're often used to treat asthma, chronic obstructive pulmonary disease (COPD), and other respiratory conditions....

High blood pressure is often caused by an underlying health condition, such as kidney disease, diabetes, or high cholesterol. Other potential causes include smoking, obesity, stress, and a sedentary lifestyle. In some cases, high blood...