Oxygen Depletion: Subtle Signs Your Body Might Be Lacking This Vital Element

19. Unusual Cravings (Pica)

While often associated with nutrient deficiencies like iron-deficiency anemia (which itself impairs oxygen transport), craving non-food substances such as ice, dirt, or clay (pica) can occasionally be an indirect, albeit strange, signal related to the body's struggle for adequate oxygenation. The exact link isn't fully clear, but persistent, bizarre cravings warrant medical attention, as they might point towards underlying issues affecting oxygen delivery.

20. Night Sweats

Waking up unexpectedly drenched in sweat, unrelated to your room's temperature? This can sometimes occur when the body experiences stress due to low oxygen levels during sleep, particularly in conditions like sleep apnea where breathing repeatedly stops. This oxygen deprivation triggers a stress response, activating the sympathetic nervous system and leading to sweating as your body works harder to cope. Persistent night sweats deserve investigation.