Sleep loss raises blood pressure and harms blood vessels
Hemodynamic, Autonomic, and Vascular Function Changes after Sleep Deprivation for 24, 28, and 32 Hours in Healthy Men
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Heart rate initially dropped before rising during sleep deprivation
Common belief is that sleep loss always increases heart rate, but this study shows an initial decrease followed by a rise, indicating a complex physiological response.
Practical Takeaways
Prioritize 7-9 hours of sleep nightly to prevent blood pressure spikes and protect vascular health.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Heart rate initially dropped before rising during sleep deprivation
Common belief is that sleep loss always increases heart rate, but this study shows an initial decrease followed by a rise, indicating a complex physiological response.
Practical Takeaways
Prioritize 7-9 hours of sleep nightly to prevent blood pressure spikes and protect vascular health.
Publication
Journal
Yonsei Medical Journal
Year
2018
Authors
J. Słomko, M. Zawadka-Kunikowska, Mariusz Kozakiewicz, J. Klawe, M. Tafil-Klawe, J. Newton, P. Zalewski
Related Content
Claims (8)
Sleep deprivation increases sympathetic nervous system activity, elevating heart rate and vascular resistance, while restorative sleep enhances parasympathetic activity, reducing cardiac output and vascular resistance.
After staying awake for a day, healthy men in their early 30s with average weight experience a small but noticeable rise in blood pressure that stays elevated for up to a day and a half.
After one night without sleep, healthy men show changes in two blood chemicals related to blood vessel health, suggesting their blood vessels might not work as well.
After 24 hours without sleep, heart rate drops slightly but then starts rising again over the next 8 hours, suggesting the body's response to sleep loss changes over time.
Staying awake for up to a day and a half doesn't significantly affect the amount of blood the heart pumps with each beat in healthy men.