I just turned 30, and a few years ago I started to notice that my energy just wasn't there. It took longer to get going, and I started relying on energy drinks to make it through the day. I haven't been real big on exercise, but being a carpenter I stay in Decent shape just from work. My diet was healthy, little to no fast food, and I haven't drank soda in well over 10 years. My issue was LOW T, I went to a clinic and had the test, I don't have health insurance, so I buy a test supplement at GNC, I can't remember the name of it right now, but it has seriously changed my energy levels and my mood, I'm the person I was 5 years ago. After seeing how the LOW T affected me, my dad went to his doc, and was also diagnosed with LOW T, he uses androgel 1.62, and his moods and energy levels are back to where they should be as well.