Fitness basics
Learning Center
Hypothyroidism and infertility: Any connection?
For women, there's sometimes a link between having an underactive thyroid gland (hypothyroidism) and infertility.
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
Thin skin? Added protection helps
Fragile or thin skin is a fairly common problem, especially in older adults.
Narrow stools: Should I be concerned?
Narrow stools may be a sign that the colon is narrowing or has a blockage.
Acute bronchitis: Is it contagious?
Most cases of acute bronchitis are caused by viruses and are contagious. Learn ways to reduce your risk of catching viruses that can cause bronchitis.
Blood pressure readings: Why higher at home?
Blood pressure that consistently measures higher outside a medical office is called masked hypertension.
Foamy urine: What does it mean?
Persistently foamy urine can be a sign of protein in your urine (proteinuria) and could be an indicator of kidney disease.
Acid reflux and GERD: The same thing?
Acid reflux and GERD are closely related, but the terms aren't necessarily interchangeable.
Nighttime headaches: How can I get relief?
"Alarm clock" (hypnic) headaches wake people up. But other nighttime headaches also can disrupt sleep. Relief begins with determining the cause.
Sleep deprivation: A cause of high blood pressure?
Too little sleep affects not only energy levels but also heart health.
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