Neurotransmitters and Hormones

GABA

Neurotransmitter: Primary inhibitory chemical in the brain

Oxytocin

Hormone: Promotes social bonding and attachment

Dopamine

Neurotransmitter: Involved in reward, motivation, and movement

Ghrelin

Hormone: Signals hunger and increases appetite

Acetylcholine

Neurotransmitter: Involved in muscles movement and memory

Melatonin

Hormone: Regulates sleep-wake cycles

Glutamate

Neurotransmitter: Primary excitatory chemical in the brain

Endorphins

Neurotransmitter: Reduce pain and perception

Epinephrine

Hormone: Triggers fight-or-flight responses

Serotonin

Neurotransmitter: Regulates mood, sleep, and appetite

Leptin

Hormone: Signals fullness and reduces appetite

Norepinephrine

Neurotransmitter: Involved in alertness and arousal

Substance P

Neurotransmitter: Transmits pain signals