(HealthDay News) -- It's important for a child to learn to be independent and care for himself. But how do you know when a child is old and mature enough to stay alone?

In general, a child younger than age 10 probably isn't ready. But when it comes to older children, the Nemours Foundation says the time may be right to forgo a babysitter if your child:

* Feels comfortable with the prospect of staying alone.
* Shows a sense of responsibility with chores, doing homework, and following rules and directions.

TUESDAY, Aug. 19 (HealthDay News) -- Living longer, even past the 100-year mark, doesn't necessarily mean that a person's last years will be spent in sickness or disability, Danish researchers report. That's because the very old typically enjoy healthy, independent lives despite their advanced age, the study found.

FRIDAY, Aug. 1 (HealthDay News) -- At 102, Marianne Crowder credits her longevity to a taste for change, a sunny attitude, and supportive family and friends.

"I'm interested in everything," the former dancer and exercise teacher from California said. "Absolutely. All the new things are wonderful. In fact, I have a new phone I'm using right now."

The Fourth of July is a nice reminder about our personal independence.

When I talk about independence with my female friends, what we mean is that we are very much OK on our own. I adore my husband, Ray, but I am also an independent woman. I think that is part of what he loves about me.

No matter what our marital or boyfriend status may be at the moment, it is a nice weekend to reflect on the fact that each of us is already complete, by ourselves.

Viva Independence!