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Health News Results - 21

If you want to slow down the aging process, it might not hurt to replace whole milk with skim, new research suggests.

The study of over 5,800 U.S. adults found that those who regularly indulged in higher-fat milk had shorter telomeres in their cells -- a sign of accelerated "biological aging."

The findings do not prove that milk fat, per se, haste...

Think the average human body temperature is 98.6 degrees Fahrenheit?

Not anymore, new research suggests.

"Our temperature's not what people think it is," said senior study author Dr. Julie Parsonnet, a professor of medicine, health research and policy at Stanford University. "What everybody grew up learning, which is that our normal temperature is 98.6, is wrong."

...

Have scientists solved the mystery of the female orgasm?

As a team of researchers pointed out, during intercourse the male orgasm serves an obvious reproductive function: Without it, ejaculation can't happen.

But the reproductive role of female orgasm has been much less clear, because ovulation in humans occurs whether a woman has recently had an orgasm or not.

So ...

Scientists say they have taken an important step forward in creating 3-D printed hearts -- with the ultimate goal of making replacement tissue for organs and body parts damaged by disease or injury.

The 3-D printing process builds three-dimensional objects based on a computer model. Unlike traditional printing onto a flat surface, the machines churn out various materials -- plastics, ...

A widening waistline can harm the health of older women, even if they avoid obesity, new research suggests.

It's a condition known as "central obesity" -- a concentration of fat around the abdomen. Central obesity can occur even if it's not enough to shift a person's body mass index (BMI) into the obese range, explained researchers led by Wei Bao, a professor of epidemiology at the Un...

Pooches look up at people with quizzical, pleading eyes that are tough to resist. Now, research suggests evolution played a role in that irresistible gaze.

Dogs were domesticated more than 33,000 years ago and have changed over time to communicate with people, the study authors noted.

Dogs' eyebrows are particularly expressive. Dogs can raise them, which makes their eyes lo...

Though rare, some children are born with an extra finger, a condition known as polydactyly.

Now, for the first time, a team of researchers set out to see whether having this extra appendage is somehow beneficial.

The answer is yes.

The bottom line: Having an additional finger significantly boosts a person's ability to manipulate objects, so much so that they can e...

Before her recent passing at the ripe old age of 99, Rose Marie Bentley harbored a remarkable secret.

Outwardly, nothing seemed out of place or extraordinary about this longtime resident of Oregon's rural northwest.

Bentley and her husband had five children and ran a farm and pet supply store in the town of Molalla. She taught Sunday school and sang choir at their United Met...

Think of it as another example of a refined palate.

The ability to make speech sounds such as "f" and "v" is due to diet-led changes in humans' bite, researchers say.

The range of speech sounds people can make was generally thought to be fixed since modern humans appeared about 300,000 years ago, but this new study challenges that theory.

The findings suggest that...

In the race to conception, the female body is set up to separate weak sperm from strong, researchers report.

A woman's reproductive system presents a veritable obstacle course that stress-tests sperm, making sure that only the strongest swimmers have a chance of reaching a woman's egg, according to a new study.

Narrow gate-like passages within the female reproductive tract ...

Coffee's bitter taste shouldn't be a selling point. But a genetic variant explains why so many people love the brew, a new study suggests.

Bitterness evolved as a natural warning system to protect people from harmful substances. That means they should want to spit out coffee, the researchers said.

But their study of more than 400,000 people in the United Kingdom found that t...

The bigger your brain, the greater your risk for a deadly brain cancer, new research from Norway suggests.

It's a matter of math: A large brain means more brain cells, and more cells means more cell divisions that can go wrong and cause mutations that trigger cancer, the study authors explained.

"Aggressive brain cancer is a rare type of cancer, but once you have it, the ch...

The earliest evidence of lead exposure has been discovered in 250,000-year-old teeth from the remains of two Neanderthals found in southeastern France, researchers say.

"Traditionally, people thought lead exposure occurred in populations only after industrialization, but these results show it happened prehistorically, before lead had been widely released into the environment," said st...

A precision map of a part of the brain of the lowly mouse could be a potent new research tool against Alzheimer's, researchers say.

The highly detailed look at the mouse hippocampus should provide new insight into a range of brain diseases in humans, according to the research team from the University of Southern California.

That's because the mouse brain is organized similar...

City birds age faster than their country cousins and traffic noise may be the reason why, a new study suggests.

The research focused on telomeres -- caps on the ends of chromosomes that protect genes from damage. Shortening of telomeres indicates faster aging.

At 120 days of age, Zebra finches that were exposed to traffic noise after leaving the nest had shorter telomeres th...

Children with autism show abnormalities in a deep brain circuit that typically makes socializing enjoyable, a new study finds.

Using MRI brain scans, researchers found that kids with autism showed differences in the structure and function of a brain circuit called the mesolimbic reward pathway.

That circuit, located deep within the brain, helps you take pleasure in social in...

New research suggests that no two brains are alike, as genetics and experience make their mark on your mind.

"With our study, we were able to confirm that the structure of people's brains is very individual," said study author Lutz Jancke. He is a professor of neuropsychology at the University of Zurich in Switzerland.

"Just 30 years ago, we thought that the human brain had...

For seniors who feel years younger than they really are, a new study suggests it might not be their imagination.

"We found that people who feel younger have the structural characteristics of a younger brain," explained lead author Jeanyung Chey. She is a professor in the department of psychology & program for brain sciences at Seoul National University in South Korea.

Ch...

The color of your hair turns out to be a complicated thing, with a full 124 genes determining whether you wind up a blonde, brunette or redhead.

The researchers who pinpointed the origins of hair hue said their findings could improve understanding of health conditions linked to pigmentation, including skin, testicular, prostate and ovarian cancers.

For the study, investigato...

The human body is full of surprises. The latest: A newly identified "organ" that might affect major diseases.

Using updated technology, U.S. scientists report they've discovered a "highway of moving fluid."

Layers of the body long believed to be dense, connective tissues are actually interconnected, fluid-filled compartments, the scientists report in a new study.

...

Young children with attention-deficit/hyperactivity disorder (ADHD) have smaller-than-normal brain regions that are crucial in controlling behavior, researchers have found.

Along with conducting MRI brain scans, the researchers assessed the thinking skills and behavior of 90 children, ages 4 and 5.

The investigators found that those children with ADHD had significantly reduc...