Today's Health|Science: cholesterol conundrum, Loch Ness quest, diabetes questions

Once, it all seemed so simple. When it came to cholesterol, there were good guys (HDL) and bad guys (LDL). And for decades, we were told only the bad guys really mattered. But, it turns out, that's not enough.

In 1972, Robert Rines (left) was at a tea party at a home overlooking Loch Ness in Scotland when his host saw something moving in the water below. This summer, like nearly every summer since then, Rines is going back to look for the fabled Loch Ness monster. He's 85 now. The rest of the tea party is gone. And he thinks "Nessie" is gone, too.

The message to diabetics has been remarkably consistent for years: Lower your blood sugar to near-normal levels to protect yourself from deadly and disabling complications. But the findings of a national study, released last week, suggest that the advice may need to be tempered slightly for diabetics who have heart disease or are at high risk for it.

Also, if we had no moon what would life be like on this planet and should I be concerned that the soles of my feet feel itchy all the time?