← Neurotransmitters

Norepinephrine (Noradrenaline)

Alertness, attention, stress response, blood pressure

Too little may be associated with

Fatigue, depression, low blood pressure

Too much may be associated with

Anxiety, hypertension, panic, insomnia

Informational only — not medical advice.

Stimuli that influence it

Adventure sports (behavior)
Aerobic exercise (behavior)
Amphetamine (substance)
Cocaine (substance)
Coffee (caffeine) (substance)
Cold exposure (behavior)
Cold shower (behavior)
Competition (behavior)
Fasting (short-term) (behavior)
Flow state (behavior)
High-intensity interval training (HIIT) (behavior)
Intermittent fasting (behavior)
MDMA (substance)
Methylphenidate (substance)
Novel experiences (behavior)
Phenylalanine (substance)
Resistance training (behavior)
Rhodiola rosea (substance)
Sauna (behavior)
Tea (caffeine) (substance)
Tyrosine (substance)

Materials

Anxious: Using the Brain to Understand and Treat Fear and Anxiety (book)
Behave: The Biology of Humans at Our Best and Worst (book)
Neuroscience (textbook) (book)
Stahl's Essential Psychopharmacology (book)
The Body Keeps the Score (book)
The Emotional Brain (book)
What Happened to You? (book)
Why Zebras Don't Get Ulcers (book)