Nutrition and seasonal changes linked to fatigue and mood

New research from Osaka Metropolitan University suggests a potential link between nutrition and levels of fatigue or motivation. A study of 602 healthy adults in Japan analyzed homocysteine, folate, and vitamin B12 levels. Researchers found that higher homocysteine levels—often associated with lower folate and B12—correlated with different symptoms based on gender: women with higher homocysteine levels reported lower motivation, while men reported higher physical fatigue. While the study shows a correlation, researchers emphasize that it does not prove a direct cause-and-effect relationship.

Separately, health experts are discussing the impact of seasonal changes on mental well-being. The transition to autumn can trigger symptoms often described as ‘autumn anxiety,’ though psychologists more commonly refer to it as seasonal affective disorder. Factors such as reduced sunlight can lead to changes in serotonin and increased melatonin production, affecting mood, appetite, and sleep. Additionally, lower levels of vitamin D during these months are linked to mood changes and depressive symptoms.