ScienceDaily: Living Well News |
- Gustatory tug-of-war key to whether salty foods taste good
- Dangerous strains of E. coli may linger longer in water than benign counterparts, study finds
- Helmet crash tests: Don't hit the road without one
- Volunteering reduces risk of hypertension in older adults
- Every 10 tobacco ad sightings boost teens' risk of starting to smoke by almost 40 percent
| Gustatory tug-of-war key to whether salty foods taste good Posted: 13 Jun 2013 11:26 AM PDT As anyone who's ever mixed up the sugar and salt while baking knows, too much of a good thing can be inedible. What hasn't been clear, though, is how our tongues and brains can tell when the saltiness of our food has crossed the line from yummy to yucky -- or, worse, something dangerous. Now researchers report that in fruit flies, at least, that process is controlled by competing input from two different types of taste-sensing cells: one that attracts flies to salty foods, and one that repels them. |
| Dangerous strains of E. coli may linger longer in water than benign counterparts, study finds Posted: 13 Jun 2013 10:36 AM PDT A toxin dangerous to humans may help E. coli fend off aquatic predators, enabling strains of E. coli that produce the toxin to survive longer in lake water than benign counterparts, a new study finds. The research may help explain why water quality tests don't always accurately capture health risks for swimmers. |
| Helmet crash tests: Don't hit the road without one Posted: 13 Jun 2013 06:24 AM PDT A new laboratory study shows bicycle helmets significantly reduce the causes of head, skull and brain injury -- linear and angular head accelerations, and the impact force of a crash. The biomechanical research with crash test dummies found that crashing without a helmet exposes the head to loads up to 9.5 times greater than with a helmet. |
| Volunteering reduces risk of hypertension in older adults Posted: 13 Jun 2013 06:23 AM PDT It turns out that helping others can also help you protect yourself from high blood pressure. New shows that older adults who volunteer for at least 200 hours per year decrease their risk of hypertension, or high blood pressure, by 40 percent. The study suggests that volunteer work may be an effective non-pharmaceutical option to help prevent the condition. Hypertension affects an estimated 65 million Americans and is a major contributor to cardiovascular disease. |
| Every 10 tobacco ad sightings boost teens' risk of starting to smoke by almost 40 percent Posted: 12 Jun 2013 07:42 PM PDT Tobacco ads really do persuade teens to take up smoking, with every 10 sightings boosting the risk by almost 40 percent, reveals new research. |
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