Sleep alone, improve your brain power

Both men and women do better mentally when they sleep alone. The effect is more pronounced for men though.

Smells by computer

A Japanese invention can sense a smell and then replicate it. Pretty cool idea.

If you couple this invention with the fact that smells trigger memories, this could be a great memory aid device. If that's done, this would be really cool.

Pair up, it could save your life

The risks of heart attacks for people living alone is double that of people living with a partner. Seems company does make you healthier.

My child's poop smells better than your child's

A study shows that mom's prefer the smell their own child's poop to that of other children's poop. One theory is that moms evolved to this so that they will care for their children.

Frankly, as a father, I knew that I had to change my child's diaper but I didn't have to do so for another person. My daughters babysit and they change diapers without complaint. But this isn't quite the same. It's one thing to change a diaper, it's another to smell different diapers (without having to change them) and prefer one smell over another.

A mystery?

Circumcision may stop millions of HIV deaths

I've written about this before. Circumcised men have a much lower chance of contracting AIDS than do uncircumcised men. So, not only do they not get AIDS as easily as others, but the chances of a circumcised man then passing it on is lower. (He can't pass it on if he doesn't get it.)

Of course, as the article notes at the end, it's not a cure and will not stop the disease. Still, lowering the risk of contracting the disease is a very, very good thing.

Astronomy Picture of the Day

This is spiral galaxy M81 that is in teh northern part of the Ursa Major constellation. The second brightest super nova is here. Note the bright yellow nucleus and blue spiral arms.

Go here to see more.