Should you stop wearing neckties?-wearing a tight necktie reduces cerebral blood flow

Neuroradiology. 2018 Aug;60(8):861-864. doi: 10.1007/s00234-018-2048-7. Epub 2018 Jun 30.


Purpose: Negative cerebrovascular effects can be expected by compressing jugular veins and carotids by a necktie. It was already demonstrated that a necktie increases intraocular pressure. In many professions, a special dress code including a necktie and a collared shirt is mandatory although little is known about the effect of this "socially desirable strangulation."

Methods: In this study, the effect of wearing a necktie concerning cerebral blood flow and jugular venous flow by magnetic resonance imaging. Thirty volunteers were divided in two groups. One underwent MRI with necktie, the other without.

Results: The examination resulted in a statistically significant decrease of CBF after tightening the necktie (p < 0.001) while the venous flow did not show any significant changes.

Conclusion: It appears that wearing a necktie leads to a reduction in CBF.

Keywords: Arterial spin labeling; Bloodflow; CBF; Necktie; Perfusion.

MeSH terms

  • Cerebrovascular Circulation*
  • Clothing / adverse effects*
  • Healthy Volunteers
  • Humans
  • Jugular Veins / diagnostic imaging*
  • Magnetic Resonance Imaging*
  • Male
  • Neck / diagnostic imaging*
  • Pressure
  • Random Allocation
  • Vasoconstriction*
  • Young Adult