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An enlarged heart has many possible causes, including conditions that force the heart to work harder than usual (such as chronic high blood pressure or heart valve problems) and different types of cardiomyopathy (heart muscle disease).

A low resting pulse can signal peak fitness, hidden heart trouble, or even thyroid issues; learn when a slow beat is harmless and when it's not.

A slower pulse can be healthy or a warning sign, depending on symptoms, medications, and your thyroid status. Simple checks can help reveal which it is.

Warm weather, vein valve issues, and fluid retention can all puff up your ankles. Learn what doctors look for and simple steps that may ease it.

In middle and older age, dry eyes and poor close-up vision can make it harder to wear contact lenses. Multifocal or monovision lenses, eye drops, and certain lens materials can help keep contacts comfortable and reduce the need for reading glasses.

Osteoarthritis and musculoskeletal syndrome of menopause can involve overlapping symptoms. But arthritis pain tends to be concentrated in specific joints, while joint pain and achiness from musculoskeletal syndrome of menopause usually occurs in multiple joints and muscles at once.

Bifocals have two vision zones: the top helps with distance and the bottom for close viewing. Trifocals add a third zone in the middle for middle-distance tasks, such as computer work. Progressive lenses cover all distances, but with no lines in the lenses.

Yellowing of the whites of your eyes can signal jaundice from high bilirubin levels. Explore possible causes of high bilirubin levels, including liver, blood, and bile duct problems.

After a heart attack, a cardiac rehab program comprised of supervised exercise, lifestyle coaching, and emotional support can reshape daily habits and lower the odds of future trouble.

Depression and migraines often travel together, with each able to worsen the other.