Image of the Day: Wildebeest Fitness Tracker
Image of the Day: Wildebeest Fitness Tracker
Data gathered from GPS-equipped collars show the animals walk long distances over days without stopping for a drink.
Image of the Day: Wildebeest Fitness Tracker
Image of the Day: Wildebeest Fitness Tracker

Data gathered from GPS-equipped collars show the animals walk long distances over days without stopping for a drink.

Data gathered from GPS-equipped collars show the animals walk long distances over days without stopping for a drink.

physiology
Image of the Day: Cracked Skin
Image of the Day: Cracked Skin
Jef Akst | Oct 9, 2018
Micrometer-scale fractures in elephant skin results from the way the epidermis grows.
Muscle Master: Angela Dulhunty
Muscle Master: Angela Dulhunty
Anna Azvolinsky | Sep 1, 2018
Having pioneered the study of muscle physiology in mammals, she uncovered how ion channels enable muscle movement.
Infographic: The Role of Circadian Clocks in Muscle
Infographic: The Role of Circadian Clocks in Muscle
Diana Kwon | Sep 1, 2018
Timekeepers in muscle help mediate metabolism, and may influence neurological processes such as sleep.
Muscle Clocks Play a Role in Regulating Metabolism
Muscle Clocks Play a Role in Regulating Metabolism
Diana Kwon | Sep 1, 2018
Just 20 years ago, scientists didn’t even realize muscles had their own circadian clocks. Now they are beginning to appreciate their importance in health. 
How Muscles Age, and How Exercise Can Slow It
How Muscles Age, and How Exercise Can Slow It
Gillian Butler-Browne, Vincent Mouly, Anne Bigot, Capucine Trollet | Sep 1, 2018
Researchers untangle the multifarious nature of muscle aging. So far, the only reliable treatment is exercise.
Heather Massey Respects Water
Heather Massey Respects Water
Shawna Williams | Aug 1, 2018
The University of Portsmouth sports scientist and open-water swimmer investigates the human body’s response to extreme conditions.
Primer: Acoustics and Physiology of Human Speech
Primer: Acoustics and Physiology of Human Speech
Philip Lieberman | Jul 1, 2018
People have a unique anatomy that supports our ability to produce complex language.
Why Human Speech Is Special
Why Human Speech Is Special
Philip Lieberman | Jul 1, 2018
Evolutionary changes in both the vocal tract and the brain were necessary for humans’ remarkable gift of gab.
Researchers Identify Biomarkers for Obesity Risk in Women
Researchers Identify Biomarkers for Obesity Risk in Women
Catherine Offord | May 31, 2018
Low levels of a biochemical process involved in fat breakdown predicts weight gain and metabolic complications more than a decade later.