CPAP vs BiPAP: one fixed air pressure versus two pressures, which is better for sleep apnea, and when BiPAP is needed
CPAP vs BiPAP: Differences, Which Is Better, and When You Need Each

CPAP and BiPAP machines look almost the same: a bedside box, a hose and a mask. The difference is in the air. A CPAP blows one steady pressure all night.…

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Bumps on the back of the tongue: the normal circumvallate papillae, foliate papillae and lingual tonsil, common causes of sore or white bumps, and when to see a doctor
Bumps on the Back of the Tongue: What Is Normal, What Causes Them, and When to Worry

You stuck your tongue out in the mirror, maybe to check a sore throat, and noticed something you had never seen before: a row of big, round bumps at the…

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Flu A vs flu B: two different influenza viruses with the same symptoms, compared on severity, contagious period, testing, treatment and the flu shot
Flu A vs Flu B: Symptoms, Which Is Worse, and How Long Each Is Contagious

Your test came back positive for flu, and the result says "influenza A" or "influenza B". Or a friend says they have "the flu B going around" and you want…

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Double jointed: what joint hypermobility means, the 9-point Beighton test with age-based cut-offs, links to joint pain and Ehlers-Danlos syndrome, and what helps
Double Jointed: What It Really Means, How to Test It, and When It Matters

Bending your thumb back to touch your forearm, locking your elbows backward or folding your fingers into odd shapes is a classic party trick. People call it being "double jointed".…

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Pimple on lip or cold sore: how to tell a lip pimple from a cold sore, other lip bumps, treatments for each, bumps inside the lip, and when to see a doctor
Pimple on Lip or Cold Sore? How to Tell, and How to Treat Each

A sore red bump on your lip sends most people straight to the mirror with one question: is this a pimple, or is it a cold sore? The answer decides…

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How to reduce stress: evidence-ranked methods including exercise, sleep, slow breathing, mindfulness and cognitive behavioral techniques, plus quick resets and when to get help
How to Reduce Stress: What Actually Works, Ranked by the Research

Your shoulders are up near your ears, your mind is running through tomorrow's list at 1am, and the smallest thing makes you snap. You know you are stressed. What you…

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What side is your heart on: the heart sits in the center of the chest tilted to the left, why the heartbeat is felt on the left, dextrocardia, chest pain by side, and CPR hand position
What Side Is Your Heart On? Where It Sits and Why It Matters

Put your hand over your heart. If you are like most people, it went to the left side of your chest, the way we do for the pledge or an…

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Best sleep position for sleep apnea: side sleeping versus back, stomach and raised head positions ranked by sleep studies, and ways to stay off your back
Best Sleep Position for Sleep Apnea: What the Sleep Studies Show

Your partner nudges you at 2am and tells you to roll over because you have stopped breathing again. Or your sleep study report came back with a line saying your…

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Is sleep apnea genetic: how strongly obstructive sleep apnea runs in families, what is inherited, why weight matters, and when relatives should get tested
Is Sleep Apnea Genetic? What Runs in Families and What You Can Change

Maybe your father snored like a freight train and fell asleep in every chair in the house. Maybe your mother was just diagnosed and handed a CPAP machine. Or you…

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How to sleep with lower back pain: the best sleeping positions, the pillows that help, choosing a medium-firm mattress, and when night-time back pain needs a doctor
How to Sleep With Lower Back Pain: Best Positions, Pillows and Mattress

You lie down hoping the ache will settle, and instead it finds you. You shift onto one side, then the other, then your back, and nothing feels right for long.…

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