 and you're in your 50s or 60s, I mean, it may be a B12 issue. B12 helps the body to make red blood cells. We need that to carry oxygen to the tissues, so important for energy. B12 helps us to burn carbohydrates and turn them into energy. B12 for your hair, your skin, your nails. So these B12 energy milks, they're fantastic. You put one on your tongue, tastes delicious. Seconds later, it's gone.