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NEWS ABOUT: hormones

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Experts Close In on Breast Cancer Vaccine

Link to childbearing hormones could be prevention key

(Newser) - The prevention of breast cancer has been strongly linked to hormonal changes that occur during pregnancy and breastfeeding, prompting a top cancer expert to predict that a vaccine could mimic such safeguards, reports the Guardian. The researcher called for increased efforts to prevent breast cancer in addition to treating it,... More »

National Zoo's Panda Preggers?

Hormone levels suggest Mei Xiang may be expecting

(AP) - The National Zoo in DC says panda mother Mei Xiang is showing a spike in hormone levels, a sign that she might be pregnant again. Mei Xiang was artificially inseminated in March with semen from Tian Tian, the zoo's male giant panda. Hormone test results indicate Mei Xiang will either... More »

New Trust Drug: Good for Shyness, Bad for Investing

Natural hormone makes people dumb with their money in experiment

(Newser) - Scientists have created a nasal spray that makes its users more trusting, the BBC reports. Made up mostly of oxytocin, alternatively nicknamed the “love hormone” or “cuddle chemical,” the spray decreases social fears by lowering activity in the amygdala. That should be great news for social phobics;... More »

Hormone Makes Food More Appetizing

Ghrelin-blocking drugs could fight obesity, but side effects loom

(Newser) - What makes people eat more than their bodies need? It might have a lot to do with the hormone ghrelin, a new study at McGill University finds. The chemical tells the brain to find food more appealing, and causes hunger, LiveScience reports. Work has already started on ghrelin-blocking drugs, but... More »

Fertile Women Sound Sexier, Study Says

Voices found to be most alluring during ovulation

(Newser) - Barflies take note: A woman's voice is sexiest when she's most fertile, a new study says. Scientists recorded women counting from 1 to 10 and found that their voices were rated most attractive when they were closest to ovulation, the BBC reports. What gives? Researchers aren't sure, but they speculate... More »

Volatile Market Hooked on Testosterone

Study pinpoints role of bullish hormone in boorish traders

(Newser) - The buying and selling of the world's wealth is at the mercy of aggressive men and their hormonal fluctuations, neuroscientists have discovered. While that doesn't come as a big surprise, the study isolates the major role that testosterone plays in making boorish traders exceptionally bullish—and the part the hormone... More »

Transgender Con Upset Over Fading Femininity

Killer suing for surgery wants more treatment

(Newser) - A prisoner who has sued for a sex-change operation has complained that treatments to feminize her body have stopped, the AP reports. “My breasts have shrunk, genitals have regained previous size, facial hair is thicker,” Michelle Kosilek, formerly Robert, wrote in a letter to the court considering the... More »

Long-Term Pairs Flunk Chemistry

Cuddle hormones that replace initial sizzle aren't so bad, says study

(Newser) - Romeo and Juliet may have been the greatest lovers of all time, but that may have had more to do with the romance's brevity than that star-crossed-lovers thing, according to an Italian study that says sex chemistry fizzles after 2 years. "Love molecules" like neutrophins are sky high in... More »

Hot Water Leaches Harmful Chemical From Plastic

Study finds plastic bottles leach chemical BPA in hot water

(Newser) - Hot liquid causes a potentially harmful chemical to leach out of certain plastics much faster than usual, researchers have found. The study, published in Toxicology Letters, discovered that  bisphenol A, or BPA, was released from some common plastic bottles 55 times faster when they were placed in boiling water. Concerns... More »

Alternative to the Pill Has No Side Effects

Non-hormonal patch would block protein key to conception

(Newser) - Contraception without the nausea, headaches, mood swings, weight gain, or heart attacks? Scientists are developing a non-hormonal patch that would side-step the side effects associated with the Pill by simply blocking a protein that allows sperm to bond with egg, the Telegraph reports. But don’t get too excited—it... More »

Scientists Solve Estrogen Heart Mystery

Cholesterol compound blocks hormone's cardiac benefits

(Newser) - A compound created as the body processes cholesterol was to blame for giving scientists conflicting data about the effect of hormone replacement therapy in menopausal women, researchers say. Initial studies had found that estrogen helps keep the heart healthy, but a later study reported that women taking estrogen actually exhibited... More »

MLB Wants HGH Blood Test for Next Season

Players union must sign off on new exam for banned substance

(Newser) - In the wake of scandals involving Cardinals outfielder Rick Ankiel and Patriots safety Rodney Harrison, among others, Major League Baseball is weighing a blood test for human growth hormone that would be implemented by next season. A test developed by the World Anti-Doping Agency is expected to be available for... More »

Testosterone in Womb Linked to Autistic Traits

Supports theory that problem is 'extreme male brain' disorder

(Newser) - An eight-year study has found a link between high levels of fetal testosterone and autistic traits in children, reports the BBC. Scientists don't know whether the testosterone causes the autistic tendencies or if the hormone is a by-product of autism, but the findings appear to support the head researcher's theory... More »

HGH Use Mars Ankiel Comeback

Cards outfielder admits taking hormones during recovery from surgery

(Newser) - St. Louis Cardinals’ star slugger Rick Ankiel acknowledged using Human Growth Hormone last night, facing reporters in the dugout after news emerged yesterday that he had received HGH from a pharmacy involved in a prescription-drug scandal. Ankiel took delivery of HGH for a year following a routine elbow surgery in... More »

Roses Are Red, Viagra Is Blue ...

Impotence drugs may also raise levels of 'love hormone'; human studies up next

(Newser) - Viagra and other ED drugs may elevate levels of a hormone linked with feelings of love, a new study shows. Oxytocin, long associated with breastfeeding and maternal affection, also plays a part in arousal and orgasm; Viagra and related meds work on the part of the brain that controls levels... More »

Bone Hormone Could Help Treat Diabetes

Bones produce a hormone that controls blood sugar

(Newser) - A substance produced by the skeleton may help to treat diabetes, a new study suggests. A hormone called osteocalcin regulates blood sugar; type 2 diabetics have a lower level of the hormone than other people. In the study, mice with lower levels of osteocalcin develop symptoms of diabetes, which go... More »

Oh, Brother! Female Twins Less Likely to Have Kids

Blame exposure to testosterone

(Newser) - Female twins with twin brothers are less likely to marry and have kids than those with twin sisters, a new study shows, and those who do reproduce have fewer children. Elevated exposure to testosterone in utero appears to be the culprit, say British scientists who reached back over two centuries... More »

Australia Cuts Stallone Down to Size

Action star draws fine for importing drugs without a prescription

(Newser) - Muscle-bound "Rocky" star Sylvester Stallone was hit with nearly $10,000 in fines and court costs today after being convicted of bringing body-building hormones into Australia without proper documentation. Customs officials busted him with human growth hormone and testosterone in February while he was promoting "Rocky Balboa" en... More »

Breast Cancer Decline Tied to Hormone Drop

Study links 'colossal' reduction in cancer to women skipping estrogen

(Newser) - Researchers are linking a dramatic drop in the number of breast cancer cases to the decline in estrogen consumption by menopausal women. Women dropped hormone replacement therapy en mass after a 2002 study tied it to breast cancer risk. Other scientists argued that the decline—about 16,000 fewer new... More »

HGH Isn't Worth the Hysteria

Hyped as the next big doping scandal, there's not much evidence it even works

(Newser) - Crusaders against performance enhancing drugs should lighten up about Human Growth Hormone: In the sports version of the war on drugs, anabolic steroids are heroin and HGH is marijuana, writes Daniel Engber. Studies haven't shown any definitive increase in athletic abilities resulting from taking HGH, and they have minimal harmful... More »

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