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- Why we miss subtle visual changes, and why it keeps us sane
- Daylight saving impacts timing of heart attacks
- Astronauts' hearts become more spherical in space
| Why we miss subtle visual changes, and why it keeps us sane Posted: 30 Mar 2014 12:15 PM PDT Ever notice how Harry Potter's T-shirt abruptly changes from a crewneck to a henley shirt in 'The Order of the Phoenix,' or how in 'Pretty Woman,' Julia Roberts' croissant inexplicably morphs into a pancake? Don't worry if you missed those continuity bloopers. Vision scientists have discovered an upside to the brain mechanism that can blind us to subtle changes in movies and in the real world. |
| Daylight saving impacts timing of heart attacks Posted: 29 Mar 2014 02:51 PM PDT Still feeling the residual effects of springing ahead for daylight saving time? The hour of sleep lost -- or gained -- may play a bigger, perhaps more dangerous role in our body's natural rhythm than we think. It seems moving the clock forward or backward may alter the timing of when heart attacks occur in the week following these time changes, according to research. |
| Astronauts' hearts become more spherical in space Posted: 29 Mar 2014 02:51 PM PDT New findings from a study of 12 astronauts show the heart becomes more spherical when exposed to long periods of microgravity in space, a change that could lead to cardiac problems, according to research. With implications for an eventual manned mission to Mars, the findings represent an important step toward understanding how a spaceflight of 18 months or more could affect astronauts' heart health. |
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