Fitness basics
Learning Center
Fetal macrosomia
When a baby in utero grows much larger than average for gestational age, it can lead to complications during childbirth for both mother and baby.
Microcephaly
Learn more about microcephaly, when an infant's head is smaller than expected. The condition affects child development.
Fitness training: Elements of a well-rounded routine
Is your fitness training program complete? Here's help to make sure you have all the basics in your program.
Rett syndrome
This rare genetic disorder affects the way the brain develops, causing a progressive inability to use muscles for eye and body movements and language.
Spermatocele
Learn more about this noncancerous testicular disorder that may require surgery if it's causing discomfort. But, the condition often needs no treatment.
Testicular torsion
Sudden, severe pain in the scrotum could be testicular torsion. Learn about symptoms and treatment for this health emergency.
Toe walking in children
Walking on toes or the balls of the feet is fairly common in children who are learning to walk. Most children outgrow it.
Mayo Clinic Minute: How to hit your target heart rate
Learn how to exercise at your target heart rate.
Active surveillance for prostate cancer
Learn about why doctors may recommend active surveillance for prostate cancer and what to expect.
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
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