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Learning Center
Withdrawal method (coitus interruptus)
The withdrawal method — pulling the penis out of the vagina before ejaculation — isn't the most effective birth control. Learn about the pros and cons.
Xylazine
Xylazine is a medicine used to sedate animals. Learn about possible risk of death in humans who take it.
Yeast infection in men: How can I tell if I have one?
Yeast infections can occur in men, causing inflammation of the penis (balanitis). Learn what signs and symptoms could mean you have a yeast infection.
Young-onset Alzheimer's: When symptoms begin before age 65
Young-onset Alzheimer's disease is a rare form of dementia that presents unique challenges. Learn more about causes, diagnosis and how to cope.