If you wake up with a dry mouth, cracked lips, or a throat that feels raw after using CPAP, you’re not alone. Dry mouth is one of the most common complaints among people treated for sleep apnea. The cause is usually straightforward: air is escaping through your mouth instead of staying sealed in your airway. … Read more

During a colonoscopy, the doctor looks for the small opening where the appendix connects to the large intestine. That opening is called the appendiceal orifice. It sits in a pouch-like section of the colon called the cecum, near the spot where the small intestine empties into the large intestine. Most of the time it is … Read more

A mouth abscess is a pocket of pus caused by a bacterial infection, and it will not heal on its own. Home care can ease pain and reduce swelling while you arrange dental treatment, but the only way to cure an abscess is to have a dentist or doctor drain the infection and treat its … Read more

Ejaculation feels good because it activates the brain’s reward system, releasing a surge of dopamine and triggering endorphin and oxytocin activity that produce pleasure and a sense of relief. The physical sensations come from rhythmic muscle contractions in the pelvic floor and urethra, combined with heightened sensitivity in the penis during the final phase of … Read more

Dementia is not an inevitable part of aging. While age is the single strongest known risk factor, a large body of research shows that several modifiable habits — controlling blood pressure, staying physically and mentally active, protecting hearing, and managing blood sugar — are linked to lower dementia risk or a later onset of symptoms. … Read more

Yes, a tubal ligation can sometimes be reversed. The procedure is called a tubal reversal, or tubal anastomosis. It reconnects the two blocked ends of a fallopian tube so an egg can travel from the ovary toward the uterus again. Whether it works for you depends on a few specific things: how your tubes were … Read more

Chobani is a brand of strained yogurt made by the Chobani company, and most of its products are marketed and labeled as Greek yogurt. Greek yogurt is defined by how it is made, not by where it comes from. Chobani uses the straining method that gives Greek yogurt its thick texture and higher protein content … Read more

Mix two clear solutions and sometimes a solid appears. That solid is called a precipitate. To predict which combination produces one, compare the solubility rules for the ions involved: if the two dissolved compounds would swap partners and form a product that is insoluble in water, a precipitate forms. The logic is straightforward once you … Read more

Most yeast infections are caused by a fungus that already lives on your body. It is called Candida albicans, and it normally sits quietly on your skin, in your mouth, and in your gut. Problems start when something tips the balance and lets it grow out of control. Hormones, medications, blood sugar, and your immune … Read more