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Sciencealert

The latest science news. Publishing independent, fact-checked reporting on health, space, nature, technology, and the environment.

  • 225articles · 30d
  • 2+ hour agolatest article
  • Aug 14, 2026earliest in window
  • 98%with images
  • 112avg words
articles per day
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  • science and technology 153
  • SCT 117
  • HTH 101
  • HW 85
  • ST 70
  • health 57
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ScienceAlert
sciencealert.com > your-body-has-a-second-heart-and-its-crucial-you-keep-it-pumping

Your Body Has a 'Second Heart', And It's Crucial You Keep It Pumping

1+ week, 6+ day ago   (430+ words) Every step, ankle flex, or rise onto your toes activates a remarkable pump below your knees....

ScienceAlert
sciencealert.com > cardiologists-just-changed-the-universal-definition-of-heart-failure

Cardiologists Just Changed The Universal Definition of Heart Failure

2+ week, 5+ day ago   (461+ words) Leading cardiology organizations around the world are having a change of heart....

ScienceAlert
sciencealert.com > your-heart-can-actually-build-its-own-bypass-after-a-heart-attack

Your Heart Can Actually Build Its Own Bypass After a Heart Attack

3+ week, 15+ hour ago   (226+ words) When heart attacks (myocardial infarctions) strike, it's because a coronary artery supplying the heart muscle gets blocked, cutting off the oxygen and nutrients the heart needs to keep going....

ScienceAlert
sciencealert.com > a-man-went-to-hospital-with-blood-in-his-urine-doctors-found-a-needle-in-his-heart

A Man Went to Hospital With Blood in His Urine. Doctors Found a Needle in His Heart.

22+ hour, 25+ min ago   (255+ words) A puncture to the heart may be shockingly insidious....

ScienceAlert
sciencealert.com > theres-a-link-between-womens-reproductive-health-and-heart-disease-doctors-say-were-missing

Link Between Women's Reproductive Health And Heart Disease Doctors Say We're Missing

3+ week, 1+ day ago   (742+ words) a year, starting in late 2021, the Women's Heart Bus chugged around France, offering cardiac and...There's good reason the bus was checking both heart and reproductive-organ health. Cardiovascular disease...we've known there's a connection between heart health and gynecological issues....

ScienceAlert
sciencealert.com > a-warning-sign-of-heart-attack-and-stroke-may-show-up-on-your-face

A Warning Sign of Heart Attack And Stroke May Show Up on Your Face

6+ day, 6+ hour ago   (272+ words) causes restricted blood flow, is responsible for most heart attacks and strokes – but it often builds up slowly...

ScienceAlert
sciencealert.com > humans-are-surprisingly-good-at-predicting-when-they-will-die-with-one-big-bias

Humans Are Surprisingly Good at Predicting When They Will Die – With One Big Bias

1+ week, 4+ day ago   (389+ words) How old do you think you will live to be? Your answer may be more revealing than you realize....

ScienceAlert
sciencealert.com > scientists-find-ominous-signs-of-artery-damage-in-nearly-8-in-10-young-adults

Scientists Find 'Ominous' Signs of Artery Damage in Nearly 8 in 10 Young Adults

2+ week, 3+ day ago   (323+ words) Youth isn't enough to protect your heart....

ScienceAlert
sciencealert.com > world-first-mitochondria-from-a-womans-leg-were-injected-into-her-eyes

World First: Mitochondria From a Woman's Leg Were Injected Into Her Eyes

2+ week, 4+ day ago   (863+ words) When the batteries die in your TV remote, you might start rummaging around your desk clock for a replacement. That doesn't tend to be how we think about the human body. But scientists are beginning to explore whether, at the…...

ScienceAlert
sciencealert.com > if-your-parents-live-to-100-does-that-mean-you-will-too-the-most-comprehensive-study-yet-has-an-answer

If Your Parents Live to 100, Does That Mean You Will Too? The Most Comprehensive Study Yet Has an Answer.

1+ week, 1+ day ago   (249+ words) Among mere mortals, a select few have an incredible gift for longevity – it's something we only see in about 0.01 percent of the world's population....

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