Ask the Doctor

Nosebleeds are common, and dry air is the most prevalent cause. Other triggers include allergies, blood-thinning medications, or a deviated septum. People with frequent, heavy nosebleeds may need evaluation for a more serious underlying condition.

Some people may feel like it's pointless to exercise if they're not losing weight as a result. But there are many reasons to exercise beyond weight loss. Regular exercise has a long list of health benefits, including an energy boost, better sleep, and reduced risks for addictive behaviors as well as many chronic diseases such as heart disease, strokes, many cancers, dementia (including Alzheimer's disease), diabetes, depression, anxiety, pneumonia, osteoporosis, and kidney problems.

Body mass index (BMI) uses weight and height to calculate whether a person is overweight or obese. However, it cannot determine the amount of visceral fat that lies deep inside the body. Two better methods are measuring waist size and determining waist-to-hip ratio.

Statins are among the most-prescribed drugs in the United States, but some people are concerned about side effects. Lifestyle changes involving diet and exercise can help lower cholesterol enough to take a statin break

Women officially reach menopause a year after periods end. Any vaginal bleeding after menopause should be evaluated. Bleeding can come from vaginal dryness or atrophy, medication side effects, various infections, endometrial thickening, or cancer.

Most people don't need to fast before a lipid test because the difference between LDL cholesterol values when fasting or not fasting is very small. But people who have had high triglyceride levels should fast prior to the test.

People may choke on their own saliva when talking quickly, laughing, or turning their head. Other causes include postnasal drip or dry mouth, which medications may trigger. Certain health conditions can also affect swallowing.

Carpal tunnel syndrome is caused by increased pressure within the carpal tunnel, a narrow passage in the wrist containing the median nerve and tendons that run into the hand. The condition can lead to persistent tingling and numbness in the hands.

The two main side effects caused by statins are muscle aches (which disappear once the drug is stopped) and a higher risk of diabetes (which is most common in people with obesity and prediabetes).

Studies have shown that both coffee and tea drinkers may experience health benefits compared to people who don't consume these beverages. Experts point to the high amounts of caffeine and inflammation-fighting polyphenols in these drinks as possible reasons.