My understanding as of the information I have read and people that I have spoken to is that taking a low dose of testosterone ie 200mg every 10 days is not damaging to health. In fact this can actually enhance ones well being, energy levels, libido, etc and help you to lead a happier and potentially more healthy lifestyle. I say potentially more healthy because I do believe you should have other factors such as diet and training in check as well in order to fully realise these benefits. Just injecting yourself with test every now and again in itself will not lead to good health. If you can utilise having more energy to work out, do cardio, get fit and enjoy a more rewarding lifestyle then I am personally all for it.