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.
Asthma and COPD are two diseases that lead to airflow obstruction. Asthma is typically characterized by reversible airflow obstruction meaning the obstruction comes and goes. This is why asthmatics have varying symptoms. In contrast, COPD patients have chronic airflow obstruction. For some patients with asthma, they can develop airway remodelling and persistent obstruction that looks similiar to COPD on breathing tests. This answer should not be considered medical advice...This answer should not be considered medical advice and should not take the place of a doctorâs visit.