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  1. www.webmd.com › erectile-dysfunction › how-an-erection-occursPenis: Anatomy, Picture, Erection, and Ejaculation - WebMD

    2024年5月17日 · What Is an Erection? An erection occurs when your penis fills with blood, causing it to expand and become firm. You might have an erection if you feel sexually aroused, though sometimes they just...

  2. www.webmd.com › a-to-z-guides › annual-physical-examinationsAnnual Physical Exams: What to Expect - WebMD

    2024年5月31日 · What Is an Annual Physical Exam? The physical exam is an essential part of any doctor's visit. Surprisingly, though, there are no absolutes in a routine physical. A good doctor may be thorough or...

  3. www.webmd.com › heart-disease › coronary-artery-diseaseWhat Is Coronary Artery Disease? Causes, Symptoms, ...

    2024年5月24日 · 13 min read. Coronary artery disease (CAD) is the most common type of heart disease. Although it’s the top cause of death in the U.S., there is a lot you can do to prevent or treat it. The...

  4. www.webmd.com › a-to-z-guides › bacterial-and-viral-infectionsBacterial vs. Viral Infections: The Differences Explained - WebMD

    6 天前 · COVID-19 is the most recent example of a worldwide pandemic caused by a viral or bacterial infection. (Photo Credit: iStock/Getty Images) Throughout history, millions of people have died of...

  5. www.webmd.com › sex › birth-controlWhich Types of Birth Control Work Best? Birth Control ...

    2024年5月30日 · Birth Control Guide. How Effective Are Different Types of Birth Control? Medically Reviewed by Traci C. Johnson, MD on May 30, 2024. Written by Paul Frysh. Most Effective: Permanent Birth...

  6. www.webmd.com › drugs › 2Norvasc (amlodipine): Uses, Side Effects, Interactions, ...

    2024年5月23日 · What is Norvasc used for? Norvasc (amlodipine) is commonly used for the following conditions. High blood pressure (hypertension) Coronary artery disease, which is a type of heart disease. Angina,...

  7. www.webmd.com › healthy-aging › aging-caregiving-older-adultsCaregiving: Taking Care of Older Adults - WebMD

    2024年5月15日 · Take steps to reduce their risk of falling, and other basic safety measures like these: Remove throw rugs. Place non-skid strips on hardwood and tile floors. Add safety rails in showers and tubs ...