Thursday, September 27, 2007
Good For You
Exercise is good for you (we all know that) and it makes sense that what kind you do makes a difference. It turns out that for diabetes control, a combination of aerobic and strength-training routines is more effective than either alone, and, more amusingly, it turns out that playing soccer is better exercise than jogging. I'd much rather play soccer than jog, so I'm cool with this. Now I just need a new ACL...
But exercise isn't always good: too much working out during pregnancy appears to be a miscarriage risk. This isn't really a surprise, if you think about it, but it is good to keep in mind.
Lastly, the American Dental Association has granted its 'seal of approval' to a few chewing gum makers to market their products as "good for your teeth." The thing is, the studies used to evaluate the positive effects were mostly funded by the gum manufacturers, and so I find it hard to really trust them.
Still, one more excuse to chew gum in class!
But exercise isn't always good: too much working out during pregnancy appears to be a miscarriage risk. This isn't really a surprise, if you think about it, but it is good to keep in mind.
Lastly, the American Dental Association has granted its 'seal of approval' to a few chewing gum makers to market their products as "good for your teeth." The thing is, the studies used to evaluate the positive effects were mostly funded by the gum manufacturers, and so I find it hard to really trust them.
Still, one more excuse to chew gum in class!
Labels: ADA, chewing gum, diabetes, exercise, health, miscarriage, pregnancy, science, soccer, teeth
Monday, December 04, 2006
Brain Dead Babies
When humans get mad cow disease, it's called variant Creutzfeldt Jakob disease (vCJD), and it kills them within about a year. What few treatments exist are ultimately ineffective. Research using RNA interference now suggests a possible way to slow the disease progress - treated mice lived much longer with a prion illness than did controls.
However, the mice had to be treated embryonically, so it's not clear how this will apply to humans, and it is possible that interfering with healthy prion production could have serious side effects. We shall see.
Speaking of brain damage: it seems that psychopaths do not process fearful faces the same way non-psychopaths do. Psychopathic subjects' brains were observed to 'light up' less than controls' when shown pictures of fearful faces, while they were the same for happy faces.
Miscarriage is an extremely traumatic event, and its causes are often utterly mysterious, but a study of 600 UK women whose pregnancies lasted more than 12 weeks suggests a number of factors that may play a role. First of all, underweight women are more likely to miscarry. No shock here, as being underweight is often associated with amenorrhea and fertility problems. Single women, and those who don't take vitamins or eat chocolate are also at increased risk. So ladies? Get thee to Godiva!
However, the mice had to be treated embryonically, so it's not clear how this will apply to humans, and it is possible that interfering with healthy prion production could have serious side effects. We shall see.
Speaking of brain damage: it seems that psychopaths do not process fearful faces the same way non-psychopaths do. Psychopathic subjects' brains were observed to 'light up' less than controls' when shown pictures of fearful faces, while they were the same for happy faces.
Miscarriage is an extremely traumatic event, and its causes are often utterly mysterious, but a study of 600 UK women whose pregnancies lasted more than 12 weeks suggests a number of factors that may play a role. First of all, underweight women are more likely to miscarry. No shock here, as being underweight is often associated with amenorrhea and fertility problems. Single women, and those who don't take vitamins or eat chocolate are also at increased risk. So ladies? Get thee to Godiva!
Labels: anorexia, chocolate, emotion, faces, fMRI, mad cow, miscarriage, pregnancy, prion, psychopathy, RNAi, vCJD
