Red blood cell

Human Sperm Swim Like 'Playful Otters,' New Study Finds

Sperm cells are wobblier and wonkier than we ever imagined.

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First Patient To Receive Gene Editing Treatment For Sickle Cell Doing Well In 2020

Victoria Gray received the CRISPR treatment, which can modify a person's cells, one year ago. Today, her life is markedly improved.

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Toddler With Cancer Who Needs Rare Blood Inspires Worldwide Search For Donors

OneBlood, a Florida blood distribution center, has launched the search to find matching blood donors for Zainab Mughal, a two-year-old with neuroblastoma.

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11 Reasons You're So Cold All The Time

Experts share why you're constantly freezing and what you can do to permanently warm up.

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What Your Gums Are Trying To Tell You

Some symptoms like gum redness, puffiness and bleeding could have surprisingly little to do with your oral hygiene.

By By Jessica Migala, Oprah.com