6. Brain Fog
That low oxygen doesn’t just affect the muscles and the breathing, it can also impact on the brain and thereby cause symptoms of brain fog.
Simply, the brain is no longer getting enough oxygen and this in turn can make it hard to think, causing memory problems, difficulty concentrating and dizziness when you stand up.
Note that brain fog is a common symptom of many health complaints however. Whenever the body fights and infection, it does so by producing pro-inflammatory cytokines to encourage inflammation and these can have the effect of causing inflammation in the brain – and thus brain fog.