Study: Exercise, but not testosterone, boosts aging hearts in men
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Testosterone levels tend to fall in older men, but a new study shows that exercise and not supplemental testosterone is the way to rejuvenate the aging male heart.
Australian researchers found that without exercise, testosterone replacement therapy offered patients no improvement at all in cardiovascular health. But exercise alone absent any testosterone supplementation did boost arterial function.
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As a bonus, exercise also boosted the men s natural testosterone levels, the study found.
According to study author Dr. Bu Yeap, the bottom line is clear: To improve the health of arteries, exercise is better than testosterone.
Study: Exercise, Not Testosterone, Boosts Male Heart Health
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Skink That Lived 25 Million Years Ago Discovered In Australia
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Archeologists Find 17,000-Year-Old Kangaroo Painting
An Australian rock painting has been dated at approximately 17,300 years old the oldest known artwork still on the wall of a rock shelter in the country in a finding that unlocks a greater understanding of humanity’s ancient past.
Researchers from the University of Melbourne (UM) and the University of Western Australia (UWA) found the kangaroo painted by ancestors of the Balanggarra people from the northeast Kimberley region of Western Australia.
The results were published on Feb. 22 in Nature Human Behaviour and form part of Australia’s largest rock art dating project.
To calculate its age, the archaeologists worked with traditional owners using radiocarbon dating based on the age of wasp nests over the paint.