Asthma

💡TL;DR: The two main pulse oximeter readings are SpO2 and PR bpm. SpO2 is your estimated oxygen saturation, and PR bpm is your pulse rate in beats per minute. For most healthy adults at sea level, SpO2 is usually 95% to 100% and resting pulse is often 60 to

💡TL;DR: Coughing up phlegm without feeling sick is often linked to allergies, postnasal drip, reflux, asthma, smoke exposure, or dry air, not just infection. Clear or white mucus is often less urgent, but phlegm that lasts more than 2 to 3 weeks, keeps coming back, increases, or comes with

💡 TL;DR: Phlegm color can give clues, but it cannot diagnose an infection on its own. Clear or white mucus is often seen with normal irritation, allergies, or early viral illness, while yellow or green usually means your immune system is active, not that you automatically need antibiotics. Red, pink,

💡 TL;DR: Normal respiratory rate changes a lot by age. Newborns and infants often breathe 30 to 60 times per minute at rest, while teens and adults usually fall around 12 to 20. A number outside the usual range can matter, but breathing effort, color, and alertness often matter even

💡 TL;DR: For most healthy adults at sea level, a normal pulse oximeter reading is 95% to 100% SpO₂ and a normal resting pulse is 60 to 100 beats per minute. Readings in the low 90s can be worth rechecking, especially if your hands are cold or the clip is

Wheezing that shows up or gets worse when you lie down is a clue, not a diagnosis. It usually means something is narrowing your airways or making it harder for your lungs to work when your body is flat. 💡 TL;DR: Wheezing that gets worse when you lie down is

💡 TL;DR: White foamy mucus is often linked to mild causes like postnasal drip, allergies, reflux, or a short-term infection, and many cases improve with home care in 1 to 2 weeks. The big tradeoff is context: a small amount without breathing trouble is usually less urgent, but sudden

💡TL;DR: Walking pneumonia is a milder form of pneumonia that often feels like a long‑lasting chest cold, with a nagging cough, tiredness, and chest discomfort that can stretch on for weeks. Fever may be low or even absent, so pay more attention to how long your cough and

💡TL;DR: Shortness of breath when you lie flat is called orthopnea and it usually points to a heart or lung issue that needs checking. If it eases when you sit up or you need two or more pillows to sleep, schedule a medical visit; sudden or severe symptoms are