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Hamstring Strain for Teens
A hamstring strain happens when one or more of the muscles in the back of the leg gets stretched too far and starts to tear. Find out how to treat hamstring strains in this article for teens.
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Myasthenia Gravis for Parents
Myasthenia gravis (or myasthenia) happens when voluntary muscles get weaker. Treatments can help symptoms.
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Groin Strain for Teens
A groin strain is when one or more of the muscles in the inner thigh gets stretched, injured, or torn. Find out what to do for groin strains.
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Strength Training for Teens
Is working out with weights safe for teens? The best way to build muscle tone and definition is to combine aerobic and flexibility exercises with the right kind of strength training.
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What Causes Muscle Twitches? for Teens
Find out what the experts have to say.
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Why Exercise Is Wise for Teens
Getting the right amount of exercise can rev up your energy levels and even help you to feel better emotionally. Find out why.
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Lou Gehrig's Disease (ALS) for Kids
Lou Gehrig's disease refers to a disorder called amyotrophic lateral sclerosis, or ALS. This disease damages the neuromuscular system, which allows the body to move.
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Quadriceps Contusion for Teens
Quadriceps contusions are common in sports that have a lot of direct contact or a chance of collisions or wipeouts. Find out what to do if you get one - and how to avoid them.
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Infant Torticollis for Parents
Babies with this condition have trouble turning their heads, due to muscle tightness. Simple stretching exercises and physical therapy can help babies get better.
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Infant Botulism for Parents
Infant botulism can happen if a baby ingests bacteria that make toxins inside the body. Treatment can help a baby who gets it recover fully.