Of those 13, only six passed our test, meaning that they had all of the compounds you'd expect to find in gingko.

The clinical trials are usually done with the extract so you should try to stick with products made from extract.

It's actually more lead than we've ever seen in supplements. We don't know if the levels in these products is enough to cause injury or symptoms in adults. It's just something you want to avoid.

The best we can do since these are unregulated, is to tell people to be very careful.

Those medicines are all good, especially the new hypnotics. The newer medications have a shorter duration of effect, meaning the effect doesn't persist and cause problems during the day. Short-term hypnotic use -- a week or two -- is fine.

Sleep tends to be fragmented, meaning we become sleepy during the daytime. That's why you see a lot of the older folks tend to fall asleep easily during the day.