There isn't one specific hormone that directly causes depression. Instead, various hormones play roles in regulating mood, and imbalances in these hormones can contribute to depression. For example:
- Estrogen and progesterone: Fluctuations in these hormones, particularly during menopause or postpartum, can trigger depressive episodes.
- Serotonin: This neurotransmitter, often called the "happy hormone," is linked to feelings of well-being. Low levels of serotonin activity in the brain have been associated with depression.
- Melatonin: This hormone, produced by the body during darkness, regulates sleep-wake cycles. In some people, the body may produce higher than normal amounts of melatonin, leading to Seasonal Affective Disorder (SAD).
- Testosterone: Low testosterone levels may contribute to depression, particularly in men.
It's important to note that depression is complex and often caused by a combination of factors, including genetics, life experiences, and environmental influences, in addition to hormonal fluctuations. If you suspect you may be experiencing depression, it's essential to consult with a healthcare professional for an accurate diagnosis and personalized treatment plan.
