mountain sickness

noun 0.854

altitude

noun 0.641

decompression sickness

noun 0.625

space sickness

noun 0.613

airsickness

noun 0.606

seasickness

noun 0.549

shortness of breath

noun 0.534

alpinism

noun 0.523

acclimatization

noun 0.522

air hunger

noun 0.522

hypoxia

noun 0.519

sickness

noun 0.518

breathlessness

noun 0.517

altimeter

noun 0.514

asthma

noun 0.512

hypertension

noun 0.512

death zone

noun 0.510

mountain climbing

noun 0.508

caisson disease

noun 0.505

green sickness

noun 0.502

acetazolamide

noun 0.502