Some studies have shown that this is the case. The effects of high levels of ''bad cholesterol'' (LDL) in the blood, which affects the arteries, are well studied. Not so the consequences of their low production.
A study conducted at the University of San Diego in California compared data from suicidal patients and noted that many of them suffered from low levels of LDL cholesterol. This led to a decrease in the production of serotonin, a neurotransmitter, which altered moods.
Other studies have shown that those affected by colon cancer suffer from the same insufficiency, also called hypocholesterolemia. But the cause-effect relationship has not been fully demonstrated.
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