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Orthostatic hypotension (postural hypotension)
This form of low blood pressure might cause dizziness, lightheadedness or fainting when rising from sitting or lying down.
Sick sinus syndrome
This heart rhythm disorder causes slow, paused or irregular heartbeats. Learn the symptoms and how it's treated.
Xylazine
Xylazine is a medicine used to sedate animals. Learn about possible risk of death in humans who take it.
Blood pressure: Is it affected by cold weather?
Blood pressure generally is higher in the winter than in the summer. Discover why.
Cellulitis infection: Is it contagious?
Cellulitis — a common, potentially serious bacterial skin infection — is not directly contagious.
Mayo Clinic Minute: Meningitis 101 for college students
College life can increase the risk of bacterial meningitis, a potentially serious infection – but a vaccine can offer protection.
Mayo Clinic Minute: New definition of Alzheimer's changes
Researchers are changing the way they define Alzheimer's disease and opening the door for better research — and hopefully, better treatments.
Bulging disk vs. herniated disk: What's the difference?
Compared with a bulging disk, a herniated disk is more likely to cause pain because it protrudes farther and is more likely to compress nerve roots.
Alzheimer's prevention: Does it exist?
Alzheimer's prevention: Strategies for staying physically and mentally fit may be most effective.
Alzheimer's and dementia: What's the difference?
The terms 'Alzheimer's disease' and 'dementia' are often used to mean the same thing — but here's the real difference between them.
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