Medically reviewed by Rachel Goldman, PhD, FTOS Key Takeaways Serotonin is a neurotransmitter important for mood, digestion, and sleep.You can increase serotonin levels naturally through exercise and ...

Us Weekly has affiliate partnerships so we may receive compensation for some links to products and services. Your mood can affect your eating habits and physical health...and your eating habits and ...

Serotonin is a neurotransmitter, a chemical that moves back and forth in the space (called the synapse) between two nerve cells, or neurons. When one neuron is ready to send a message to another, it ...

Learn which supplements may help manage seasonal affective disorder (SAD) symptoms, including vitamin D, omega-3s, and more.

While they may be beneficial on their own, taking these supplements together could hinder absorption or be outright unsafe.

Research shows that reward-based learning requires the two neuromodulators to balance one another's influence -- like the accelerator and brakes on a car If you've heard of two of the brain's chemical ...