Anatomy, Feature Post

These images show how different and unique tears really are

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In our day to day lives, we don’t give much thought to tears – we usually focus more on the emotions that cause them than the salty droplets themselves. Well, tears are much more complex than we give them credit for, as Dutch artist Maurice Mikkers showed. Tears Caused By Emotional Response: There are actually three main type of tears: basal

Anatomy, Videos

Sitting down for too long is really bad for you – see why [VIDEO]

animated video

Though it enjoys to sit or lie down from time to time, the human body is made for moving not sitting. It’s all hardwired in our biology. Inside, there are about 360 joints and about 700 skeletal muscles that enable easy, fluid motion. Our skin is stretchy. The blood circulates best when the body is upright. Basically, every cell in our body itches for a walk. But when you sit down for too long, all sorts of health problems can arise from back and muscle pain, to more threatening long-term problems like hearth disease or cancer. I’ll leave you to Murat Dalkilinç in this extremely enlightening, but also practical TED animated video.

Anatomy, Anthropology, News

Bonobo anatomy offers clues on how our body evolved

Claudine Andre, the founder of Lola ya bonobo, and the “friends of the bonobos of the Congo’, an NGO which works in DRC with Timbo, one of her best bonobo friends. Photo courtesy of Christian Ziegler.

A pair of anthropologists compared the anatomical features o bonobos to those of homo sapiens and other apes to infer any clues that might help us understand how we evolved to look the way we do.

Anatomy, Mind & Brain, Science

Risky brain, safe brain: MIT charts neural pathways involved in decision-making

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Researchers at MIT have now identified a neural circuit that they believe underpins decision-making in situations such as this, and have started looking into mice’s brains to better understand the biological processes that make us tick and help us pick.

Anatomy, Anthropology, Biology, Did you know?, News

Why in the world do we have chins? Maybe, because we evolved from being just brutes

Man with prominent chin and missing teeth. Etching by Wenceslas Hollar.

Ever wondered what chins are good for? Upon a quick reflection, you might think it actually has some practical value, supporting your jaw against the massive chewing forces. But that’s nonsense. It doesn’t do any of that, as a recent research concludes. In fact, the chin – the last facial feature to stop growing – actually makes the jaw less resistant to the bending stress of chewing as we age. Though still a mystery, scientists believe the chin is actually a side effect of the rest of the face having become smaller. Much smaller than that of early ancestors or cousin Neanderthals, at least.

Anatomy, Health & Medicine, News

Good News: Biggest Study Yet of Penis Size Confirms Average Size

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Many men (and women) are curious about the average penis size, but Dr. Abraham Morgentaler took it to the next level. He conducted a study on over 15,000 men to create a chart of the average size – and the good news is, you’re probably better off than you think. “Most men tend to believe they’re smaller than average, and there’s

Anatomy, Health & Medicine, News

54% of men and 31% of women over age 70 are sexually active

Image via journal.ie

We tend to think that sexual activity slows down and ultimately stops as we end, but a new study has shown that it’s not as bad as we think. Over half of all men and almost a third of all women over 70 are still sexually active – with over a third of all people having sex at least twice a month.

Anatomy, Health & Medicine, News

The development of babies’ brains relies directly on fat from the mother’s bottom and thighs

Different hip-to-waist ratios. Image source.

We like big butts and I know why: because it helps babies develop their brains properly. Researchers have found that especially during breastfeeding, the development of babies’ brains relies on fat supplies stripped directly from the mother’s thighs and bottom.

Anatomy, Feature Post, Health & Medicine

What Science Says About the Pain of Running (And Addiction)

Homer-Simpson-Running

I don’t think anybody has ever claimed that running is a 100% wonderful experience. Even the most avid runners still have to get past the painful parts of that morning jogging session. However, there’s a common misconception that some people just aren’t made to run. With the exception of those with certain chronic medical problems, of course, most human bodies

Anatomy, Diseases, Health & Medicine, News

Imaging Cancer with Sound and Light

a) Optical-resolution photoacoustic microscopy of sO2 in a mouse ear; b) acoustic-resolution photoacoustic microscopy of normalized total hemoglobin concentration, (hemoglobin), in a human palm; c) linear-array photoacoustic CT of normalized methylene blue concentration, (dye), in a rat sentinel lymph node (SLN); d) circular-array photoacoustic CT of cerebral hemodynamic changes, Δ(hemoglobin), in response to one-sided whisker stimulation in rat; e) photoacoustic endoscopy of a rabbit esophagus and adjacent internal organs, including the trachea and lung. UST = ultrasonic transducer. Courtesy of Dr. Lihong V. Wang.

In 2003, Dr. Lihong V. Wang at Washington University introduced one of the most exciting technologies we’ve had the chance to see in a long while. By combining ultrasound and light absorption, Wang and colleagues developed a new method that makes multicontrast images of biological tissues several inches below the skin. Among others, this allows specialists to see cancer in action with unprecedented