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Personal Perspective: "Normal" isn’t perfection but a statistical range based on population data. Diagnoses compare ...

On the flip side, a low HRV — less variation between beats — can indicate your body is stuck in “fight-or-flight” mode. That ...

Nitric oxide doesn’t get the hype of collagen or NAD+, but it plays a central role in blood flow, energy, and how well the ...

The Arctic ground squirrel survives conditions that would cause irreparable brain damage in almost any other mammal on the ...

What could happen if oxygen levels doubled in Earth’s atmosphere. Why Venezuela’s oil may be far more trouble than it is worth for Chevron and other companies How fake admiral was caught out by ...

Scientists sent hurricane-level floods into a Maryland forest to find out what extreme weather and sea-level rise mean for coastal woodlands Kristen Goodhue PNNL Earth scientist Peter Regier (left) ...

An implantable zinc magnesium battery generates hydrogen and removes oxygen inside tumors, triggering a hypoxia-activated drug and achieving strong, localized tumor suppression in mice. (Nanowerk ...

Understanding your heart rate is crucial for more than just reaching optimal fitness–it can also help to reduce injury and ...

Testosterone is arguably one of the most essential hormones for supporting men’s health. It plays a role in supporting intimate, bone, muscle, and mental health. Testosterone levels that are higher or ...

Air travel for some adult patients with pulmonary diseases may be challenging, so having proactive discussions with your patients is key. “Without appropriate preparation and intervention, patients ...