At high altitudes, the air pressure is much lower than it is at sea level and contains fewer oxygen molecules and less oxygen is taken in at each breath. This requires deeper and rapid breathing to get the same amount of oxygen into the blood stream compared to breathing in air at sea level. Exercises increase the oxygen demand and make breathing more difficult at high altitude. In this study, ...

introduction: adenotonsillar hypertrophy (ah) is considered the most common cause of upper respiratory tract obstruction among children. it results in a spectrum of symptoms from mouth breathing, nasal obstruction, hyponasal speech, snoring, and obstructive sleep apnea (osa) to growth failure and cardiovascular morbidity. adenotonsillectomy is a typical strategy for patients with ah, but may le...

background: anxiety among patients after surgery can affect their physiological and psychological well-being. the aim of this study was to investigate and compare the effects of benson’s relaxation and rhythmic breathing techniques on postoperative anxiety in candidates for the mastectomy surgery. methods: this randomized controlled clinical trial study was conducted with ninety patients in 201...

introduction: breathing rehabilitation techniques are designed to reduce symptoms, decrease disability, increase participation in physical and social activities, and improve the overall quality of life for individuals with chronic respiratory disease. however, the role of these techniques remains unclear. this study examined the effects of pursed-lip breathing (plb) education on the respiratory...

Millipedes (Diplopoda), with a few notable exceptions, are poor dispersers, showing a very high degree of endemicity, not the least in mountains. The first samplings of the Mesovoid Shallow Substratum (MSS) of the higher altitudes of the Sierra Nevada Mountains (Baetic System, Southern Spain) have led to the discovery of a high number of millipedes, each of the species present showing a differe...