ADVERTISEMENT
  About the SA Blog Network

Posts Tagged "heart"

Bering in Mind

Think Crying Is Cathartic? Not Always

Psychologists take a closer look at the folk wisdom that “it’s good to get it out of your system”

Keep reading »
Food Matters

Fish Feast

three salmon pieces on a chopping board

Families across America are likely snacking on a surplus of turkey, ham and chicken leftover from last week’s holiday meals. But for some Italian-American families, seafood was the protein of choice. Seven different types of seafood, to be exact. In the traditional Southern Italian “Feast of the Seven Fishes,” families partake in at least seven [...]

Keep reading »
Guest Blog

Using Computers to Model the Heart… Why Bother?

It’s often said that these are exciting times to be a computational biologist, and indeed they are. But beyond the flashy, gee-whiz aspects of computational biology, I find myself excited for another reason: the tools of in silico biology offer us views of biological systems that we wouldn’t otherwise have. Biological systems are complex and [...]

Keep reading »
Guest Blog

Heart interrupted

The day Patti’s heart tissue died From the increased strength and frequency of meowing, Patti took the cue from her feline alarm clock that it was morning. Although the sun was just rising, the gentle breeze wandering through her window indicated that it was to be another beautiful September day. Patti got out of bed, [...]

Keep reading »
Guest Blog

New wave of MRI-safe pacemakers set to ship to hospitals

This week Medtronic will begin shipping to hospitals in the United States the first pacemaker approved by the FDA as safe for most MRI scans. For consumers, it is a significant step in what is expected to be a wave of new MRI-compatible implanted cardiac devices. But this is an example of one technology chasing [...]

Keep reading »
Observations

How Computational Models Are Improving Medicine [Video]

computational medicine

The more we learn about cancer, heart disease and Alzheimer’s, the more vexingly complex they seem—and the more elusive their cures. Even with cutting-edge imaging technology, biomarker tests and genetic data, we are still far from understanding the multifaceted causes and varied developmental stages of these illnesses. With the advent of powerful computing, better modeling [...]

Keep reading »
Observations

Ultra Marathons Might Be Ultra Bad for Your Heart

extreme endurance exercise heart

If getting some exercise is good for you and getting lots is even better, then hours upon hours of intense exercise must be best, right? Perhaps not. Many people feel obligated to hit the gym or the trail every now and then to help keep off the extra pounds. But people who run ultra marathons [...]

Keep reading »
Observations

India’s City Dwellers at Greater Risk Than Americans for Heart Disease

india city heart disease risk

Diabetes, heart disease, stroke and other afflictions that once primarily plagued wealthier, western countries are now accelerating in poorer nations. A new study reveals that risk factors for heart disease in Indian cities are now more prevalent than they are in the U.S. or Western Europe per capita. And with a population of more than [...]

Keep reading »
Observations

Risk of Heart Disease Underestimated, Researchers Say

Heart disease is the leading killer in the U.S., and more than 27 million Americans currently have a cardiac condition. But what is your risk of developing heart disease at some point in your entire life? It might be a lot higher than you think, according to a new paper published online Wednesday in The [...]

Keep reading »
Observations

Optic pacemaker: Embryonic heartbeats paced with laser pulses

heart rate can be controlled with optic laser

The heart’s electrical pulse has made possible the modern-day pacemaker, a device that has helped keep millions of human hearts beating. Such invasive devices, however, have proved difficult to use on small, delicate embryonic animal hearts, which some researchers study to learn more about the early stages of heart development, as well as to develop [...]

Keep reading »
Observations

Listening to the heart: Heartbeat may reveal information on kidney health

Researchers have recently found a new reason for doctors to listen to the heart: Certain heart rhythms may provide critical information about the health of our kidneys. Daniel Brotman, professor of medicine at Johns Hopkins University, and colleagues analyzed data from 13,241 individuals enrolled in the Atherosclerosis Risk in Communities (ARIC) Study. The researchers found [...]

Keep reading »
Observations

Common lung disease–even when asymptomatic–can decrease heart’s performance

copd lung heart disease efficiency

About one in five U.S. adults over the age of 45 has a lung condition that—even in its mildest forms—can have a negative impact on the heart, researchers announced today. This common disease, chronic obstructive pulmonary disease (COPD), is also the fourth leading cause of death in the U.S. and includes ailments in which lung [...]

Keep reading »
Octopus Chronicles

Octopuses Survive Sub-Zero Temps Thanks to Specialized Blue Blood

octopus blue blood

Octopuses’ oddities run deep—right down to their blue-hued blood. And new research shows how genetic alterations in this odd-colored blood have helped the octopus colonize the world’s wide oceans—from the deep, freezing Antarctic to the warm equatorial tropics. The iron-based protein (hemoglobin) that carries oxygen in the blood for us red-blooded vertebrates becomes ineffective when [...]

Keep reading »
Symbiartic

SciArt of the Heart

12-007FEATURE

Happy Valentine’s Day from Symbiartic!

Keep reading »

More from Scientific American

Scientific American Holiday Sale

Give a Gift &
Get a Gift - Free!

Give a 1 year subscription as low as $14.99

Subscribe Now! >

X

Email this Article

X