Sex and aging
Learning Center
Transgender facts
Know the basics about sex and gender, including common terms and definitions.
Limbic-predominant age-related TDP-43 encephalopathy (LATE)
LATE causes symptoms similar to Alzheimer's, but may progress more slowly.
Xylazine
Xylazine is a medicine used to sedate animals. Learn about possible risk of death in humans who take it.
Delusional parasitosis
Learn more about this condition and positive steps you can take to manage the symptoms.
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.
Placenta: How it works, what's normal
Understand how this pregnancy organ works and what conditions can affect it.
Signs of labor: Know what to expect
Know exactly what to expect as your due date approaches and your body prepares for delivery.
Types of psoriasis
Learn to identify types of psoriasis, such as guttate psoriasis and scalp psoriasis, by appearance.
Senior sex: Tips for older men
Sex isn't just for the young. Get tips for staying active, creative and satisfied as you age.
Baby naps: Daytime sleep tips
Know when and how long babies need to nap, how to put them down for naps and how to handle fussiness.
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