Good thread Fleury. I had significant hair loss some time ago due to stress. I mean falling out to the point where I went to the doctor's. I was really surprised to find out that the stress I was under caused a flare up of a physical condition that led to hair loss. Embarrassing, to say the least but you cannot just turn off the stress. Dr. recommended I see a T pronto. I've also experienced lack of sleep, lack of concentration and depression (but that may have been in place already).