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Beyond tobacco: Lung cancer in nonsmokers

While cigarette smoking remains the biggest cause of lung cancer, between 15% and 25% of cases globally occur in people who have never smoked. Lung cancer claims more women's lives than breast and ovarian cancer combined. Risk factors among nonsmokers include age, family history, chronic lung conditions, and exposure to secondhand tobacco smoke, radon, diesel fumes, air pollution, and asbestos. People concerned about their risks should discuss it with their doctor, reduce exposure to lung cancer contributors, and get involved in advocacy efforts.

Do tattoos cause lymphoma?

The number of adults in the US with at least one tattoo has risen dramatically in recent decades, so headlines about a study that found an association between having a tattoo and higher risk of lymphoma may have caused worry. But there's much more to the story than just the headlines.

What is leaky gut syndrome?

Leaky gut syndrome isn't a clinical diagnosis. It refers to a breakdown in the barrier between the gut and bloodstream caused by inflammation in the small intestine. The bacteria and toxins that seep through the gut lining can trigger an array of intestinal symptoms.

The lowdown on vaginal TLC

Substances women eat, drink, or use can support or detract from vaginal health. The vagina's microbiome includes trillions of healthy bacteria that inhibit harmful bacteria. Certain conditions, such as an infection called bacterial vaginosis, indicate a harmful shift in the vaginal microbiome. Fruits, vegetables, legumes, and whole grains benefit the vagina by tamping down inflammation. Other vagina-friendly foods include yogurt and soy. Staying well hydrated helps ward off dryness. Smoking or douching, however, can harm vaginal health.

Surprising symptoms of chronic heartburn

Chronic heartburn is sometimes characterized by symptoms that are similar to those of other conditions. This can cause heartburn to go undiagnosed. Examples of nonspecific heartburn symptoms include chest pain or pressure that mimics a heart attack; a dry cough, sore throat, or hoarse voice that seems like it's related to a cold; or mouth sores, ulcers, erosion or wear on the teeth, or cavities. When any of these symptoms occurs regularly, heartburn should be considered as a potential cause.

How — and why — to fit more fiber and fermented food into your meals

A healthy diet is key to a healthy gut microbiome, which helps the immune system function well and reduces chronic inflammation among other important tasks. And increasing evidence suggests that fiber and fermented foods can play important roles in gut health.

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