Circulate Health, a Seattle health longevity startup, today announced $12 million in seed funding to expand its plasma ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is ...

A basic review of the anatomy, physiology and personal protective equipment related to the respiratory system.

Discover 7 shocking factors your immune system needs beyond food. Learn why diet alone isn't enough for optimal immune health ...

Circulatory system: Blood vessels. Laid end-to-end, ... 2.5 million new red blood cells are released from the bone marrow, replacing a similar number that are destroyed or damaged.

Researchers say a key compound in this drink could restore cells helping you live for longer and protecting you against ...

Following a heart transplant, patients must undergo surgical biopsies so that clinicians can monitor for signs of organ rejection. A new study shows the promise of a biomarker that could allow doctors ...

Some parts of it were what you might call “visibly invisible”: Everyone in Tehran knows about Evin Prison, perched on the ...

Period loss, or amenorrhea, affects approximately 3% to 4% of women of reproductive age. It can be the body’s response to an ...

Discover 8 shocking causes of hand peeling and effective treatments. Learn why your hands are peeling and get proven ...

Your backyard may be a place of peace, play, and plant life—but some of that greenery could be more dangerous than it looks.