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Nail-biting can introduce germs into people’s mouths that can cause a range of illnesses, including colds or salmonella. The habit also creates tiny fissures in skin that can become infected. People who bite their nails should occupy their mouth and hands with other tasks.
An estimated 32% of Americans delayed routine medical care during the pandemic. People resuming their annual physicals should ask their doctor if they need vaccinations, screening tests, prescription changes, or lifestyle modifications to improve their health.
By age 75, about half of all Americans develop at least one cataract, a cloudy area in the eye’s lens that can make it harder to read, do handiwork, golf, or drive. Stopgap measures—such as using brighter lights, avoiding nighttime driving, or wearing tinted glasses to reduce glare—can delay the need for cataract surgery. Cataract surgery has evolved to offer a variety of artificial lens options to replace the natural lens removed. Most lenses can reduce the need for glasses or contact lenses. People should check their health insurance coverage since most advanced lenses aren’t covered.
Invisible illnesses, meaning those that aren’t obvious to other people, affect an estimated 10% of the 61 million Americans who have a physical or mental condition that limits their movement or senses. Some people fear disclosing their invisible illness will make them seem incapable or entitled, but keeping illness secret can lead to isolation. People who decide to disclose their hidden illness should keep descriptions simple, point others toward reputable information, tell people how the illness limits them, and seek support.
A 2023 study found that the DASH diet, rich in whole grains, lean protein, nuts, low-fat dairy, and fruits and vegetables, may dramatically lower the risk of heart problems in women and Black adults.
A 2022 study found that among adults 65 and older who undergo major surgery, nearly one in seven dies within a year. Dementia or frailty greatly increase the odds of postoperative death.
A 2022 study found that vitamin D deficiency significantly increases the likelihood of age-related loss of muscle strength, known as dynapenia, a major risk factor for falls.
Migraines, which affect nearly 40 million Americans, are likely vastly underdiagnosed and undertreated. Women are three times more likely to get migraines than men, and hormones appear to be a major trigger. Other triggers include stress, disrupted sleep patterns, hunger or dehydration, certain foods or medications, and bright lights or loud noise. Newer medications are more targeted and pose fewer side effects. They include CGRP (calcitonin gene-related peptide) blockers, more effective nasal sprays, and green light therapy.
About 96 million Americans have prediabetes, defined by elevated blood sugar levels that are not high enough to qualify as diabetes. Risk factors include overweight or obesity, family history, and inactivity. People with prediabetes may have more infections and frequent urination or blurry vision after big meals. Lifestyle changes such as maintaining a healthy weight, exercising, eating healthy foods, drinking alcohol moderately, and not smoking may prevent prediabetes from progressing to diabetes.
Irritable bowel syndrome (IBS) affects up to 45 million Americans, two-thirds of whom are women. IBS is categorized into three types depending on which symptoms dominate: diarrhea, constipation, or a mix of both. Possible contributors include changes in gut bacteria, faulty nerve signals between brain and intestine, pelvic floor problems, and genetics. Newer treatment approaches target pathways involved in symptoms. Doctors are also repurposing older drugs for IBS, including certain antidepressants and the antibiotic rifaximin (Xifaxan).