If you can wiggle your ears, you can use muscles that helped our distant ancestors listen closely. These auricular muscles helped change the shape of the pinna, or the shell of the ear ...

Voluntary muscles, also known as skeletal muscles, are muscles that can be consciously controlled, such as the muscles of your limbs, head, neck, and body. They are attached to bones and respond to ...

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An older man presses his fingers to the side of his head, next to his ear. To test whether humans still use auricular muscles — which once helped move our primate ancestors’ ears to funnel sound — ...

Have you ever worked out and watched your muscles grow before your eyes? While this is a fun, satisfying sight to behold, it's unfortunately temporary. Known as a muscle pump, this type of instant ...

Nasdaq Composite includes only Nasdaq-listed common stocks, impacting its tech-heavy nature. It's market-cap weighted, where larger companies notably influence the index's performance. Investing ...

The transversus abdominis (TA) muscle is the deepest of the abdominal muscles. It extends between the ribs and the pelvis, wrapping around the trunk from front to back. The fibers of this muscle run ...

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Muscles are typically inactive except during exercise, and a special type of fat — called brown fat — activates only in the cold to help warm us up. When on standby, these two tissues burn ...

Summary: Humans have vestigial ear muscles that once helped our ancestors focus on sounds. New research shows these muscles still activate when we strain to hear in noisy environments. Scientists used ...