What is serotonin, and how does it affect mood and mental health?

Question

Lately, I’ve been feeling more anxious and unmotivated than usual, and I started looking into how brain chemicals affect emotions. I came across serotonin, which is often called the “happiness hormone,” but I don’t fully understand what it does.

How exactly does serotonin affect mood, and why do low levels lead to depression and anxiety? Is there a way to test serotonin levels in the body, or do doctors diagnose imbalances based on symptoms? I also read that serotonin is not just in the brain but also in the gut—how does that connection work?

Are there natural ways to boost serotonin without medication? I’ve heard that exercise, sunlight, and certain foods like bananas and dark chocolate help increase it, but do these actually make a noticeable difference? Also, do Ayurvedic herbs like ashwagandha or brahmi help with serotonin production?

If anyone has tried natural ways to increase serotonin, what worked best for you? Did you notice any real improvements in your mood and energy levels?

Dr Sujal Patil · Accepted Answer

Serotonin is a neurotransmitter that plays a big role in regulating mood, sleep, and appetite. Low levels of serotonin are linked to depression, anxiety, and low energy.

How Serotonin Affects Mood:
Mood regulation: Serotonin helps maintain a sense of well-being and happiness.
Low serotonin: Can lead to symptoms like depression, anxiety, and irritability.
Serotonin Testing:
Doctors typically diagnose serotonin imbalances based on symptoms rather than direct testing. There isn't a simple test for serotonin levels in the body.
Serotonin in the Gut:
About 90% of serotonin is found in the gut, where it helps regulate digestion. It also communicates with the brain to influence mood and emotional state.
Boosting Serotonin Naturally:
Exercise: Physical activity increases serotonin production.
Sunlight: Exposure to sunlight helps boost serotonin levels.
Foods: Foods like bananas, dark chocolate, turkey, and nuts can help.
Ayurvedic herbs: Ashwagandha and Brahmi are known to support mood and brain function, possibly helping with serotonin production.
Personal Experiences:
Many people find that exercise and sunlight make a noticeable difference in mood. Additionally, Ayurvedic herbs like ashwagandha are praised for helping manage stress and anxiety. If you’re struggling with serotonin-related symptoms, experimenting with natural methods like exercise and dietary changes may help improve your mood and energy.

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