Sex: It's costly but worth it. Just ask a microbe
...nance, take comfort in knowing that microbes share your pain. In the first study to examine the cost of sexuality in microbes, Jianping Xu, associate professor of biology at McMaster University, found that sex exacts physical, morphological and behavioural stress on microbes. His findings are published i...Paleontologists learn how not to become a fossil
...e quality of the record you're going to include in your analysis," Jablonski said. "Sometimes focusing on the most reliable fraction of the record will be the best way to go." Second, use all available data, but check to see if the evolutionary patterns they detect are consistent with the distortion of t...Confidence in memory performance helps older adults remember
...elieving that you can retain a good memory even in your twilight years is the first step to achieving that goal. Those who believe they can control their memory are more likely to employ mnemonic strategies that help keep memory fit despite the march of time. These are the conclusions of a new Brandeis st...Loosen leash on cancer protein 'watchdog,' researchers say
...t to die early of cancer or die early from wearing your body out?" The scientists theorized that the solution could lie with another protein the body produces naturally to keep p53 in check. This other protein, called Mdm2, keeps p53 inactive until it is needed, acting like a leash on a watchdog. "p53 s...Don't hold your breath: Carp can manage without oxygen for months
How long can you hold your breath? Scientists at the University of Oslo have recently discovered how the Crucian Carp, a close relative of the goldfish, is able to live for months without oxygen. The researchers hope that understanding how some animals cope with a lack of oxyg...New 'implanted contacts' designed to fix nearsightedness
...ightedness. "Think of it as a contact lens inside your eye," said Dr. Wayne Bowman , who is inserting the new implantable collamer lens, or ICL, today for the first time at UT Southwestern University Hospitals. The ICL can replace or reduce the need for glasses by permanently placing the specially fitt...'Scent of a woman' tells male redback spiders to find a mate
...hat immediately after the first time you have sex, your partner -- who is 100 to 200 times your body weight -- will eat you alive. Not the ideal honeymoon, perhaps. But redback males, who get onl...Even fish don't swim well when they're young!
...eeble strokes of doggy-paddle propel you away from your parent's arms. Surely, you think, fish must be born as expert swimmers. Actually, fish larvae are pretty feeble when it comes to an efficient mode of swimming called 'burst-and-coast'. Dr Ulrike Müller from Wageningen University studies how fish swim...Just the expectation of a mirthful laughter experience boosts endorphins 27 percent, HGH 87 percent
...on of the "mirthful laughter" involved in watching your favorite funny movie has some very surprising and significant neuroendocrine/hormone effects. According to Berk: "The blood drawn from experimental subjects just before they watched the video had 27% more beta-endorphins and 87% more human growth ho...Chocolate, wine, spicy foods may be OK for heartburn, Stanford study finds
...e say to them? Go ahead and eat chocolate. Indulge your passion for spicy cuisine. Drink red wine. Enjoy c...re lying down. In addition, you're advised to keep your weight under control. Those lifestyle changes coupled with antacids and various over-the-counter and...One-third of adults with diabetes still don't know they have it
...nd 200 partner organizations. "You should talk to your health care professional about your risk. If your blood glucose is high but not high enough to be diagnosed as diabetes, losing weight ...Memory loss affects more of the brain than previously thought
...ill test for heart patients, except this test puts your brain on a treadmill," Dr. Petrella said. The tes...beginning to impact the day-to-day life of you and your family, you should undergo comprehensive testing by a physician, as memory loss can be caused by man...Tiny shock absorbers help bacteria stick around inside the body
...s system is similar to a set of shock absorbers on your car that dampen turbulent forces caused by bumpy road conditions," added study co-author Dr. Wendy Thomas, assistant professor of bioengineering at the UW. The researchers found that fimbrial uncoiling and recoiling events balance each other at an ...In-home sensors spot dementia signs in elderly
...tifying clinical changes that are difficult to get your arms around in the typically designed practice we have nowadays," said ORCATECH's director, Jeffrey Kaye, M.D., OHSU professor of neurology and biomedical engineering. ...New MRI technique quickly builds 3-D images of knees
...r chance to make sense of the pain you're feeling, your doctor's diagnosis and your treatment options," he says. The technique, which Block patented through the Wisconsin Alumni Rese...Production of key Alzheimer's protein monitored for first time in humans
...ven hours, you make half the amyloid beta found in your central nervous system." Ideally, the production and clearance rates stay balanced, causing the overall amount of Abeta in the central nervous system to remain constant. In the healthy volunteers who were the first test subjects, Bateman found the ...Mechanism identified for promising neurological drug
...uld be a reasonable tradeoff. But you want to have your eyes open." Another implication has to do with gender differences: PARP-1 stimulates an inflammatory response much more strongly in males than in females, "across all species that have been looked at," says Swanson. "It's unclear why that's true. Bu......ultimate in tissue therapy. Simply supply a bag of your blood and come back two weeks laterto find it turned into cells from other tissues, ranging from brain and liver cells to the insulin-producing beta islet cells of the pancreas. The idea is to revert a patient's blood cells to the stem cell stage a...Researchers link two more genes to sudden infant death syndrome
...ould often have to tell them, 'We have no idea why your apparently healthy infant did not wake up this morning,' " Dr. Ackerman says. "Although so much of SIDS remains unexplained, these findings that point to the heart for 10 percent to 15 percent of SIDS provide one place to search for a possible explan...Smooth sailing: 'cruise ship virus' tackled by UH, Baylor College of Medicine
... vacation, having fun sailing the seven seas, when your stomach starts rolling worse than the waves. Before you know it, nausea and vomiting have replaced shuffle board and sun-bathing. Unfortunately, it's a scenario that's becoming increasingly common on cruise ships. So common, in fact, that the N...