The draining lava left long, tube-like caverns. Of the four caves in this particular cluster, only Boyd Cave is now open to hikers. Arnold Ice Cave is filled with ice. Skeleton and Wind Cave were open to hikers until 2007, when they were gated closed to prevent vandalism and protect hibernating bats.
On the other hand, asthma is an ongoing chronic condition that has acute flare ups and chronic pulmonary insufficiency due to airway reactions that cause the bronchial tubes to be partially obstructed. This results in shortness of breath, chronic cough, frequent chronic bronchitis, chronic pneumonia and wheezing.
1 Tachypnea â Tachypnea is the medical term used to define an elevated respiratory rate. This rapid respiratory rate is usually shallow, vs hyperpnea which can be rapid and deep.  Dyspnea â Dyspnea refers to the sensation of shortness of breath, and can occur with an elevated, a normal, or a decreased respiratory rate.