Tina Hesman Saey's Articles
- The 2015 Nobel Prize in medicine went to scientists who used nature as the model for important human drugs to combat malaria and serious infections.
- Former President Jimmy Carter has a potentially lethal type of skin cancer that has already spread to his liver and brain. Recent improvements in medicine may help him fight it.
- Ancestral humans and their extinct relatives had much more DNA than do people today, a new study finds. It mapped genetic differences over time among 125 different human groups.
- Oh no! Vitamin B12 can cause skin bacteria to secrete chemicals that cause zits.
- MERS — a killer viral disease — emerged for the first time only three years ago. That was in the Middle East. Now it has spread to Asia.
- Scientists have puzzled over what makes that loud sound when our knuckles “crack.” Bubbles appear to play a role, but not in popping.
- A new bird flu virus threatens to spread outside of China. Experts traced the germ to markets where live chickens are sold.
- Peppers can burn the tongue, but soothe sore tissues. Scientists have now sleuthed out how, and the answer shows a role for stretch sensors on cells.
- The common cold infects the nose. Scientists long have known the virus grows better there, but not why. Now, a study finds the body’s defenses simply don’t work as well under the nose’s slightly cooler temperatures.
- A record outbreak of the deadly disease has already claimed nearly 1,000 lives in West Africa. Scientists suspect bats or eating some other wild animals may have triggered the epidemic.