An estimated 90% of men who have sex with men and as many as 5% to 10% of sexually active women engage in receptive anal intercourse. Often referred to simply as anal sex, anal intercourse is sexual activity that involves inserting the penis into the anus. People may engage in anal intercourse, which has health risks, because the anus is full of nerve endings, making it very sensitive. For some recipients of anal sex, the anus can be an erogenous zone that responds to sexual stimulation. For the giving partner, the anus may provide a pleasing tightness around the penis. While some people find anal sex enjoyable, the practice has downsides and requires special safety precautions. Is Anal Sex Safe? There are a number of health risks with anal sex, and anal intercourse is the riskiest form of sexual activity for several reasons, including the following: The anus lacks the natural lubrication the vagina has. Penetration can tear the tissue inside the anus, allowing bacteria and viruses to enter the bloodstream. This can result in the spread of sexually transmitted infections including HIV. Studies have suggested that anal exposure to HIV poses 30 times more risk for the receptive partner than vaginal exposure. Exposure to the human papillomavirus (HPV) may also lead to the development of anal warts and anal cancer. Using lubricants can help some, but doesn't completely prevent tearing. The tissue inside the anus is not as well protected as the skin outside the anus. Our external tissue has layers of dead cells that serve as a protective barrier against infection. The tissue inside the anus does not have this natural protection, which leaves it vulnerable to tearing and the spread of infection. The anus was designed to hold in feces. The anus is surrounded with a ring-like muscle, called the anal sphincter, which tightens after we defecate. When the muscle is tight, anal penetration can be painful and difficult. Repetitive anal sex may lead to weakening of the anal sphincter, making it difficult to hold in feces until you can get to the toilet. However, Kegel exercises to strengthen the sphincter may help prevent this problem or correct it. The anus is full of bacteria. Even if both partners do not have a sexually-transmitted infection or disease, bacteria normally in the anus can potentially infect the giving partner. Practicing vaginal sex after anal sex can also lead to vaginal and urinary tract infection

How To Breastfeed - Deep Latch Technique

Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the parent cell into two daughter cells. The word "mitosis" means "threads," and it refers to the threadlike appearance of chromosomes as the cell prepares to divide.

Dental implant surgery is a procedure that replaces tooth roots with metal, screwlike posts and replaces damaged or missing teeth with artificial teeth that look and function much like real ones. Dental implant surgery can offer a welcome alternative to dentures or bridgework that doesn't fit well. How dental implant surgery is performed depends on the type of implant and the condition of your jawbone. Dental implant surgery may involve several procedures. The major benefit of implants is solid support for your new teeth — a process that requires the bone to heal tightly around the implant. Because this healing requires time, the process can take many months.

Many over-the-counter medications can help relieve heartburn. The options include: Antacids, which help neutralize stomach acid. Antacids may provide quick relief. But they can't heal an esophagus damaged by stomach acid. H-2-receptor antagonists (H2RAs), which can reduce stomach acid. H2RAs don't act as quickly as antacids, but may provide longer relief. Proton pump inhibitors, such as lansoprazole (Prevacid 24HR) and omeprazole (Prilosec OTC), which also can reduce stomach acid.

Kegel exercises strengthen the pelvic floor muscles, which support the uterus, bladder, small intestine and rectum. You can do Kegel exercises, also known as pelvic floor muscle training, just about anytime. Start by understanding what Kegel exercises can do for you — then follow step-by-step instructions for contracting and relaxing your pelvic floor muscles.

Wound | Suturing Techniques

The external jugular vein receives the greater part of the blood from the exterior of the cranium and the deep parts of the face, being formed by the junction of the posterior division of the retromandibular vein with the posterior auricular vein.

IV Dose Calculations

Tighten Sagging Breasts

Watch that video of Filling Monster Tooth Cavity

Initial symptoms may include: Pain or discomfort in the upper tummy (abdomen), especially after eating. Indigestion. (Note: most people who have indigestion do not have stomach cancer.) Feeling sick, and being off food. ... Weight loss and/or loss of appetite. You may pass blood out with your stools (faeces).

Millions of sperms are deposited into the vagina during sexual intercourse. The sperms make their way through the cervix into the uterus and then on to the fallopian tubes. As they swim along this way their numbers decline. Only a few hundred sperm will get close to the egg. During the trip, sperm prepare themselves to meet the egg by subtle alterations of their heads and movement patterns. Once inside the fallopian tube, the sperm attracts the egg by releasing a chemical. The egg is surrounded by a protective covering called the zona pellucida, which allows only one sperm to penetrate it. Once inside the egg, the head of the fertilizing sperm releases its genetic contents, which fuses with the nucleus of the egg. Fertilisation is now complete. Sperm are able to survive for 2-3 days within the female's reproductive tract. The length of the time that a woman's egg can be fertilized by a man's sperm ranges from 12-24 hours.

When taking oral corticosteroids longer term, you may experience: Clouding of the lens in one or both eyes (cataracts) High blood sugar, which can trigger or worsen diabetes. Increased risk of infections. Thinning bones (osteoporosis) and fractures. Suppressed adrenal gland hormone production

Iron is a mineral that plays a vital role in health and well-being. Without it, many bodily functions would malfunction. “The primary role of iron is to carry oxygen in the blood to every cell in the body,” says Beth Thayer, RDN, MS, director of the Center for Health Promotion and Disease Prevention at Henry Ford Health System in Detroit. Iron is an important component of hemoglobin, the protein in red blood cells that carries oxygen from the lungs and transports it throughout the body.

You're sneezing, coughing, and all stuffed up. It sounds and feels like a cold, alright. But as time goes on, you start to wonder. Is it turning into a sinus infection? They've got some things in common, but there are ways to tell them apart. The right ID lets your doctor get you the best treatment. What Is a Common Cold? It's an infection caused by a virus, a tiny living thing. You can't miss the symptoms: Nasal congestion Runny nose Post-nasal drip (drop-by-drop release of fluid from your nose into the back of the throat) Headache Fatigue You may also get a cough and a mild fever. The symptoms usually build, peak, and slowly disappear. Some medications can ease symptoms. For example, decongestants may decrease drainage and open the nasal passages. Pain relievers may help with fever and headache. Cough medicine may help, as well. Colds typically last from a few days to about a week or longer. Sometimes, a cold may cause swelling in the sinuses, hollow spaces in your skull that are connected to each other. The swelling can prevent the flow of mucus.

Problems that affect ovulation, and the hormones involved with ovulation, are the most common cause of female infertility. They include: Polycystic Ovarian Syndrome (PCOS). Women with PCOS do not ovulate regularly and they experience infrequent or absent menstrual cycles.

A Cryptic Pregnancy is a pregnancy, where the feotus is hidden or camouflaged in its natural environment; due to no HcG hormone being produced by the placenta and/or by difficulty in finding with ultrasound devices.

The brain is that part of the CNS contained within the cranial cavity (figure 13.1). It is the control center for many of the body's functions. The brain is much like a complex central computer but with additional functions that no computer can as yet match. Indeed, one goal in computer technology is to make computers that can function more like the human brain. The brain consists of the brainstem, the cerebellum, the diencephalon, and the cerebrum (table 13.1). The brainstem includes the medulla oblongata, pons, midbrain, and reticular formation. The structure of the brain is described in this chapter. Its functions are primarily discussed in chapter 14. Twelve pairs of cranial nerves, which are part of the PNS, arise directly from the brain. Two pairs arise from the cerebrum, nine pairs arise from the brainstem, and one pair arises from the spinal cord.