Lymphoma is a cancer that originates in the lymphatic system, a vital part of the body’s immune defenses. This system includes lymph nodes, vessels, and tissues found in the bone marrow, spleen, ...

Ammonia is a chemical that both occurs naturally and can be created. It is a colorless gas — one part nitrogen and three parts hydrogen — with a foul smell that most people easily recognize.

Glomeruli are clusters of small blood vessels in the kidney that allow waste to pass from the blood and into the urine. Glomerulonephritis occurs when the glomeruli swell, damaging the kidneys and ...

There's no way to sugarcoat it: Humor is subjective. What's funny to one person might not be even funny to their best friend. There are off-color jokes, simple jokes, and even jokes that, technically, ...

The perineum is the area between the thighs and below the pelvis, between the coccyx and symphysis pubis. The pelvic diaphragm forms the top of the perineum, and the floor is skin and muscle fascia.

Peripheral neuropathy is a broad term for any condition that damages the peripheral nerves that transfer sensory information and carry signals from the central nervous system in the brain and spinal ...

Because of the COVID-19 pandemic and the threat of many other infectious diseases, scientists have begun looking more closely at what causes diseases to spread and what characterizes a person’s ...

Pneumonia occurs when bacteria enters your lungs, when food, stomach acid, or your saliva goes down or comes up the esophagus -- the wrong channel. This condition is called pulmonary aspiration, and ...

The back bears a large portion of the body’s weight when we walk, run, lift items, and perform various other activities. Because the back has to bear this stress, back injuries and pain are among the ...

Apoplexy is an ancient medical word that originated in Greece — by definition, a term for internal organ bleeding. Beginning in the late 14th century, physicians often used the word to describe a loss ...

Electric cars are gaining popularity for good reason: they’re quiet, cost-effective, and easy to maintain. For seniors, a small electric vehicle (EV) can offer freedom, comfort, and simplicity—without ...

Whole grains have been a staple in human diets for millennia, but in recent times, they've become the subject of much debate. Amidst the swirl of dietary advice, whole grains stand at the crossroads ...