 Dr. Pincus, you talked earlier about how stress affects your energy. And I'd like you to elaborate a little bit more on that subject, if you would. I mean, does stress really affect our energy levels? Good question. Because energy is like the biggest thing right now. Like people, chronic fatigue syndrome, PMS, and fibromyalgia. It's like wiping people out. And that's the key to low energy. A lot of it's caused by pain, feeling old, your joints don't move well. This kind of wipes you out. It drains your energy. And then you get tired and you go to sleep.