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The Circadian Rhythm of the Heart Rate
The Circadian Rhythm of the Heart Rate
The sympathetic nervous system influences gene expression in the heart to regulate the day-night cycle of resting heart rate.
The sympathetic nervous system influences gene expression in the heart to regulate the day-night cycle of resting heart rate.
fight or flight
Psychological Stress Distracts the Immune System from Fighting Infections
Jennifer Zieba, PhD | Aug 8, 2022 | 3 min read
Acute stress makes immune cells migrate immediately to the bone marrow, which prepares the body for injury at the expense of increasing infectious disease susceptibility.
Science Snapshot: How Brains Handle Surprise Parties
Lisa Winter | Jun 3, 2022 | 1 min read
When unexpected events occur, norepinephrine signals mouse brains to pay attention to key details.