Can you really be allergic to exercise? Yes – and it sounds awful.

Does your skin get really itchy when you run, bike, or lift weights? If it does, you could suffer from a physical allergy that causes you to itch when you exercise. Greatest allergy ever? Sure, maybe – unless you've got the version that makes it miserable to even climb stairs. » 10/01/13 11:52am 10/01/13 11:52am

A potential new malaria vaccine puts weakened parasites into the body

Malaria is one of the deadliest diseases on the planet, killing about 2,000 people every day. Much effort has been put into developing a vaccine, and while there have been some encouraging results, it's proved difficult to control the malaria parasites and their mosquito carriers. Now, a new vaccine actually makes… » 8/11/13 5:30pm 8/11/13 5:30pm

Researchers uncover key clues in the mystery of limb regeneration

Why do some salamanders regenerate limbs faster than others? A team of biologists has identified genetic factors that may dictate the rate at which limbs and organs re-grow in these incredible amphibians, shedding much-needed light on one of the most remarkable physiological feats in the animal kingdom. » 7/03/13 2:00pm 7/03/13 2:00pm

Does being cold make you more susceptible to catching cold?

There's a common bit of folk wisdom that being physically cold triggers the onset of common cold symptoms. How much of this claim is the truth? And how much is fiction? » 5/29/13 11:46am 5/29/13 11:46am

Humans may soon regenerate damaged body parts like salamanders

Australian researchers have isolated an immune system cell in salamanders which helps it regenerate missing limbs and damaged organs — and they suspect the same thing could work in humans, too. » 5/22/13 10:30am 5/22/13 10:30am

Radioactive Bacteria Can Kill Cancer

Researchers looking for a novel strategy to fight pancreatic cancer say that radioactive bacteria can attack and kill diseased cells without harming healthy tissue. » 4/25/13 2:20pm 4/25/13 2:20pm

Can We Avoid an Antibiotic Apocalypse?

More and more diseases are becoming resistant to antibiotics. Within a few decades, we’ll enter the “post-antibiotic era,” a time when even the most routine infections could threaten our lives. It’s a frightening prospect — but we may have some novel bacteria-fighting tricks up our sleeve. » 4/12/13 11:07am 4/12/13 11:07am

The Tick That Can Make You a Vegetarian

If you love bacon, then you ought to be careful about getting a bite from a lone star tick — unlike other tick bites, which can spread diseases like Lyme disease, a lone star tick bite can actually make you allergic to red meat. » 2/07/13 8:20am 2/07/13 8:20am

"Naked Darth Vader" is the most bizarre science press release we've…

As someone who deals with academic press releases on a frequent basis, I have to sympathize with journal and university press offices. They have to put together a press release that's attention grabbing enough to pique the interest of writers, is clear enough to explain the concepts to the untrained, but doesn't lose… » 8/24/12 7:30am 8/24/12 7:30am

Why doctors are treating allergies with parasitic worms

Hookworms are ghastly little creatures. Tiny, parasitic, and frighteningly invasive, these wriggling hell-spawn consistently rank among leading causes of morbidity in underdeveloped nations, abound in regions of the world suffering from poor sanitation, and have been described by various epidemiologists as "the… » 8/10/12 11:00am 8/10/12 11:00am

Unknown disease causes woman to grow fingernails instead of hair

In 2009, student Shanyna Isom experienced an allergic reaction to a steroid treatment she received for an asthma attack. Since then, she's been afflicted by a medical disorder that's left physicians at Johns Hopkins University stumped. What was initially mistaken for eczema and a staph infection has left Isom with… » 8/10/12 9:35am 8/10/12 9:35am

When stress makes you healthier

Diabetes. Cardiovascular disease. Depression. These are the effects you typically see associated with stress. While it can cause disease, stress is also good for you. It's part of important cognitive and physiological functions that extend far beyond keeping us alive in "fight or flight" scenarios. » 4/04/12 10:11am 4/04/12 10:11am

Are allergies for real?

Allergies were pretty much completely unknown until the beginning of the twentieth century, and allergic diseases have skyrocketed in the last twenty years, and well over half of all Americans are allergic to an airborne substance. What's going on here? » 1/13/12 8:05am 1/13/12 8:05am

How vaccinating half the population might protect everyone

How do you stop the spread of a disease most effectively? By vaccinating all children, or only half? A new Dutch study suggests that the counterintuitive solution for halting HPV is to vaccinate only girls. How can protecting fewer children actually protect more? » 12/20/11 2:46pm 12/20/11 2:46pm

Our cells lock up Shigella bacteria in cages to stop it from killing us

Shigella is an incredibly nasty bacteria related to E coli and Salmonella, and it's only found in apes — including us humans. When we get infected, it can cause lethal dysentery, so we've evolved a cunning way of fighting off the bug, a technique which has only just been observed. The human cells attack the invading… » 12/04/11 11:00am 12/04/11 11:00am

All the winners of this year's Nobel Prizes in science!

The 2011 Nobel Prizes have been announced, honoring preeminent achievements in the fields of physics, chemistry, medicine, literature, the promotion of peace, and economics. Here's what you need to know about the three science-related Nobel Prizes. » 10/13/11 6:04pm 10/13/11 6:04pm

Scientists figure out how to switch off peanut allergy

The peanut allergy is one of the eight most common types of food allergies, and the common use of peanuts in a wide range of foods makes it particularly dangerous. But now scientists have a solution: trick your immune system. » 10/11/11 4:30pm 10/11/11 4:30pm

How Nobel Laureate Ralph Steinman used his own discoveries to treat his…

Last week, scientist Ralph Steinman became the first person in history be be awarded the Nobel Prize in Physiology or Medicine posthumously; just three days prior to the award announcement, Steinman passed away following an extended bout with pancreatic cancer. » 10/11/11 2:45pm 10/11/11 2:45pm

The Nobel Prize in Physiology or Medicine has been awarded posthumously…

Earlier today, the 2011 Nobel Prize in Physiology or Medicine was awarded to Bruce A. Beutler and Jules A. Hoffmann (pictured left and center, respectively) "for their discoveries concerning the activation of innate immunity;" and to Ralph M. Steinman "for his discovery of the dendritic cell and its role in adaptive… » 10/03/11 3:35pm 10/03/11 3:35pm