10 Hypercapnia Symptoms
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- 4. National Institute on Drug Abuse. 'Hallucinogens DrugFacts.' National Institute on Drug Abuse, 9 June 2021, www.drugabuse.gov/publications/drugfacts/hallucinogens
- 5. Muscle Spasms (Muscle Cramps): 'Causes, Pain Relief & Treatment.' Cleveland Clinic, my.clevelandclinic.org/health/diseases/15466-muscle-spasms
Drowsiness
Dropping off to sleep in front of the TV or while reading a book isn't unusual for someone who feels drowsy. Drowsiness is also one of several common hypercapnia symptoms. It can strike at the most inappropriate times, for example, dropping off to sleep in the middle of a conversation.
Lifestyle factors such as working long hours or working the night shift can contribute to drowsiness. In addition, mental states such as depression and medical conditions such as diabetes can also cause drowsiness.
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