What are eye floaters?

Eye floaters occur when the thick, jelly-like substance that fills the center of the eye form blobs that block incoming light. They might resemble spots, cobwebs, or strings. The sudden appearance of new floaters should prompt a call to your doctor, but most often they become less bothersome over time.

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Help for erectile dysfunction

Taking erectile dysfunction pills is still the easiest way for most older men to manage their ED. The drugs are more affordable than in the past. But sometimes they don’t provide the help men need, and some men are bothered by side effects, such as headaches, flushing, upset stomach, or dizziness. These individuals may get extra assistance by exploring alternative therapies or devices to help them get and maintain erections.

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Screening for atrial fibrillation: An update

Atrial fibrillation (afib), an often-silent heart rhythm disorder, increases the risk of stroke. Early detection may enable people to start taking anti-clotting drugs to prevent a stroke. Current afib screening methods include asking people about afib symptoms and taking an electrocardiogram during routine check-ups. Wearable devices such as smart watches and fitness trackers can detect afib, but they aren’t yet accurate enough to be used for widespread screening.

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Why people faint: From common to very rare causes

All episodes of fainting results from insufficient blood flow to the brain. But there are many underlying causes for that diminished blood flow, ranging from common, usually harmless issues to rare, potentially serious problems. Common causes include vasovagal syncope and orthostatic hypotension; rare causes include carotid sinus hypersensitivity and rotational vertebral artery syndrome.

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Cold-water dips: Healthy or risky?

Swimming (or just dunking) in cold water is generally safe. But people with heart rhythm disorders should be cautious about this practice. The evidence for the health benefits for cold-water immersion (which allegedly include fat loss and reduced inflammation) is limited. Submerging the face in cold water triggers the diving reflex, which causes the heart to slow down and blood pressure to rise. This response, in addition to an adrenaline surge from cold water on the skin, may trigger an underlying arrhythmia.

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Fatty liver disease: A threat to the heart?

A buildup of fat inside the liver, known as nonalcoholic fatty liver disease (NAFLD) affects about 25% of adults. This under-recognized condition is closely linked to obesity (especially excess weight around the middle of the body), type 2 diabetes, and cardiovascular disease. People with NAFLD can slow or even reverse the condition with the same lifestyle strategies that improve cardiovascular health: losing weight, adopting a healthy diet, and exercising regularly.

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