Fitness basics
Learning Center
Exercise and illness: Work out with a cold?
Play it smart. Ease up on exercise if you have a cold.
Female orgasm: No climax with vaginal penetration?
Not all women have orgasms with vaginal penetration during sex. Most women need stimulation of the clitoris to climax.
Fiber supplements: Safe to take every day?
Fiber supplements are one way to add fiber to the diet. Here are some tips for using them safely.
Frequent sex: Does it protect against prostate cancer?
Some studies have suggested that frequent ejaculation may reduce the risk of prostate cancer. But other research hasn't supported this idea.
GLP-1 agonists: Diabetes drugs and weight loss
Noninsulin drugs for diabetes improve blood sugar control and may also support weight loss.
HPV infection: A cause of cancer in men?
Learn what types of cancer human papillomavirus can cause and how you can lower your risk.
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
Heartburn medicines and B-12 deficiency
Acid-controlling medicines may do more than prevent heartburn. They also may keep vitamin B-12 from being absorbed.
Heavy periods: Can folic acid help?
Heavy periods may cause iron deficiency anemia. Folic acid supplements can't treat that.
High cholesterol in children: How is it treated?
High cholesterol in children can lead to narrowed and hardened arteries, increasing the risk of heart disease later in life.
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